Why the universe seems so strange | Richard Dawkins

1,847,496 views ・ 2007-01-16

TED


請雙擊下方英文字幕播放視頻。

譯者: 黃友豪 . 審譯者: Geoff Chen
00:25
My title: "Queerer than we can suppose: the strangeness of science."
0
25000
5976
我的講題:「比我們所能想像的更離奇: 科學的不可思議」
00:31
"Queerer than we can suppose" comes from J.B.S. Haldane, the famous biologist,
1
31416
4142
「比我們所能想像的更離奇」 引自著名生物學家霍爾登 (J. B. S. Haldane)
他說道: 「我的個人猜想是,
00:35
who said, "Now, my own suspicion is that the universe is not only queerer
2
35582
4778
宇宙不僅比我們想的離奇,
00:40
than we suppose, but queerer than we can suppose.
3
40384
4059
而是比我們"能想"的更離奇。
00:44
I suspect that there are more things in heaven and earth
4
44848
2731
我估計天地間的事物
00:47
than are dreamed of, or can be dreamed of, in any philosophy."
5
47603
4790
比任何學說曾設想/能設想的還要多。」
費曼 形容量子理論之精確性 -
00:54
Richard Feynman compared the accuracy of quantum theories --
6
54213
4815
實驗測準 - 相當於釐定北美洲之跨度時
00:59
experimental predictions --
7
59052
1826
01:00
to specifying the width of North America to within one hair's breadth of accuracy.
8
60902
6287
誤差不逾一絲毫髮.
01:07
This means that quantum theory has got to be, in some sense, true.
9
67649
4069
意思是量子理論應該於某種意義上屬實
01:11
Yet the assumptions that quantum theory needs to make
10
71742
2935
然而, 量子理論在得出該推論前
01:14
in order to deliver those predictions are so mysterious
11
74701
3439
所需之假設卻又是如許深奧
01:18
that even Feynman himself was moved to remark,
12
78164
3754
以致於費曼亦不禁指出:
01:21
"If you think you understand quantum theory,
13
81942
2839
「若您以為自己懂量子理論,
01:24
you don't understand quantum theory."
14
84805
2627
您其實並不懂量子理論。」
真奇怪,物理學家作闡述的時候,
01:28
It's so queer that physicists resort to one or another
15
88670
3406
01:32
paradoxical interpretation of it.
16
92100
2722
竟都訴諸於這樣那樣的之悖論。
於此演說「現實結構」之 David Deutsch,
01:35
David Deutsch, who's talking here, in "The Fabric of Reality,"
17
95378
4493
01:39
embraces the many-worlds interpretation of quantum theory,
18
99895
5081
擁護籍以闡釋量子理論的「多宇宙論」,
01:45
because the worst that you can say about it
19
105000
2021
因為, 對此您充其量
01:47
is that it's preposterously wasteful.
20
107045
2253
只能數落其為浪費無度
01:49
It postulates a vast and rapidly growing number of universes existing in parallel,
21
109322
6405
它假設有極多數目激增之宇宙
它們同時並存 - 並且除了通過一個量子機動實驗之窄小孔道外
01:55
mutually undetectable,
22
115751
1811
01:57
except through the narrow porthole of quantum mechanical experiments.
23
117586
6419
互不察覺。
那是 Richard Feynman 之見解.
02:05
And that's Richard Feynman.
24
125268
1708
生物學家 Lewis Wolpert
02:08
The biologist Lewis Wolpert believes
25
128395
2374
02:10
that the queerness of modern physics
26
130793
1715
相信現代物理之奇怪
02:12
is just an extreme example.
27
132532
1686
只是一個極端例子。 科學, 有異於(純)技術,
02:14
Science, as opposed to technology,
28
134242
2300
02:16
does violence to common sense.
29
136566
2673
確實有違常理。
02:19
Every time you drink a glass of water, he points out,
30
139787
3103
他指出, 每當您喝一杯水,
02:22
the odds are that you will imbibe at least one molecule
31
142914
3481
您同時亦可能飲下
02:26
that passed through the bladder of Oliver Cromwell.
32
146419
2958
一個曾流過 Oliver Cromwell 膀胱之水分子。
02:29
(Laughter)
33
149401
1807
02:31
It's just elementary probability theory.
34
151232
2227
這純粹是基本可能性.
02:33
(Laughter)
35
153483
1176
02:34
The number of molecules per glassful is hugely greater
36
154683
3217
每杯水的水分子量, 數目遠遠大於
02:37
than the number of glassfuls, or bladdersful, in the world.
37
157924
3786
世上杯量與膀胱量之數
02:41
And of course, there's nothing special about Cromwell or bladders --
38
161734
3210
再說,Crornwell 和 (他的) 膀胱當然都沒啥特別。
02:44
you have just breathed in a nitrogen atom
39
164968
2429
您剛剛吸入的一個氮原子
02:47
that passed through the right lung of the third iguanodon
40
167421
3555
曾從第三頭禽龍的右肺
02:51
to the left of the tall cycad tree.
41
171000
2709
轉到蘇鐵高樹上那頭的左肺去。
02:56
"Queerer than we can suppose."
42
176555
2323
「比我們所能想像的更離奇」
02:59
What is it that makes us capable of supposing anything,
43
179807
3519
是什麼讓我們能作「猜想」呢?
03:03
and does this tell us anything about what we can suppose?
44
183350
3540
這說明了我們 [能猜想出甚麼] 來嗎?
03:07
Are there things about the universe that will be forever beyond our grasp,
45
187724
5358
宇宙中可有什麼事物
是永遠在我們掌握之外, 卻不在某些更高智能
03:13
but not beyond the grasp of some superior intelligence?
46
193106
3367
的掌握之外? 宇宙中可有什麼事物
03:16
Are there things about the universe
47
196497
1689
03:18
that are, in principle, ungraspable by any mind,
48
198210
4247
是, 原則上, 無論多高明的智慧
03:22
however superior?
49
202481
1519
亦無從掌握的呢?
03:25
The history of science has been one long series of violent brainstorms,
50
205422
4737
科學歷史是一系列悠長的
劇烈腦震盪 (集思廣益), 後繼的新生代
03:30
as successive generations have come to terms with
51
210183
3100
已逐漸接受宇宙中
03:33
increasing levels of queerness in the universe.
52
213307
2843
確有愈來愈多的離奇不解。
03:36
We're now so used to the idea that the Earth spins,
53
216863
3050
現在我們都已太清楚是地球繞著太陽在轉
03:39
rather than the Sun moves across the sky,
54
219937
2331
並非太陽於天空中劃過 - 對此,我們實在難於理解
03:42
it's hard for us to realize
55
222292
1309
03:43
what a shattering mental revolution that must have been.
56
223625
3482
(當時) 會是一種多震撼的思想革命啊.
03:47
After all, it seems obvious that the Earth is large and motionless,
57
227631
3203
畢竟, 表面上明明是地球大喇喇地待著
03:50
the Sun, small and mobile.
58
230858
1779
而小小的太陽在移動。 值得玩味的是
03:52
But it's worth recalling Wittgenstein's remark on the subject:
59
232661
4585
Wittgenstein 論及此題目時所說過的話:
03:57
"Tell me," he asked a friend, "why do people always say
60
237270
3979
「告訴我, 」他問一個朋友, 「為何人們總說,
04:01
it was natural for man to assume that the Sun went 'round the Earth,
61
241273
4075
日繞地轉是人的自然構想
04:05
rather than that the Earth was rotating?"
62
245372
2659
而非地繞日轉呢?
04:08
And his friend replied, "Well, obviously,
63
248878
1993
他的朋友答說:「這個嗎, 看來明明就是
04:10
because it just looks as though the Sun is going round the Earth."
64
250895
3594
太陽繞著地球在轉喔。」
04:15
Wittgenstein replied, "Well, what would it have looked like
65
255114
3762
Wittgenstein 答道: 「呃,若『看來像是地球在轉』
04:18
if it had looked as though the Earth was rotating?"
66
258900
3512
會是如何呢? (眾笑)♫
04:22
(Laughter)
67
262436
3975
04:27
Science has taught us, against all intuition,
68
267000
3027
科學讓我們曉得, 雖則與直覺相悖,
04:30
that apparently solid things, like crystals and rocks,
69
270051
3401
但那些表面上堅實的的物體, 比如水晶和石頭
04:33
are really almost entirely composed of empty space.
70
273476
3881
確是幾乎全由空間所構成。
04:37
And the familiar illustration is the nucleus of an atom
71
277706
4295
最熟悉的一種解說是: 一個原子的核
04:42
is a fly in the middle of a sports stadium,
72
282025
3115
就好比大球場中間的一隻小蒼蠅
04:45
and the next atom is in the next sports stadium.
73
285164
3027
而次一枚原子, 已遠在另一個大球場.
04:48
So it would seem the hardest, solidest, densest rock
74
288897
3187
故此, 看來堅實緊密之石塊
04:52
is really almost entirely empty space,
75
292108
3589
原來幾乎完全是由細小微粒所分隔之空間,
04:55
broken only by tiny particles so widely spaced they shouldn't count.
76
295721
4574
其間距是如此疏遠, 以至都可忽略不計.
05:00
Why, then, do rocks look and feel solid and hard and impenetrable?
77
300835
4135
這樣說來, 為何石塊看著摸著又是那麼堅硬不透呢?
05:06
As an evolutionary biologist, I'd say this: our brains have evolved
78
306199
4675
作為一個演化生物學家, 我會這麼說: 我們的腦袋是按如何
05:10
to help us survive within the orders of magnitude, of size and speed
79
310898
6078
有助於我們於某個大小及速度的範圍內
05:17
which our bodies operate at.
80
317000
1740
活動而演化。我們並未變成
05:19
We never evolved to navigate in the world of atoms.
81
319185
2883
可於原子世界中漫游♫
05:22
If we had, our brains probably would perceive rocks
82
322092
3325
若有的話, 我們的腦袋可能會將石頭理解為
05:25
as full of empty space.
83
325441
1446
空空洞洞。石頭在我們的手裡感覺堅實不透
05:26
Rocks feel hard and impenetrable
84
326911
2444
05:29
to our hands, precisely because objects like rocks and hands
85
329379
4597
正正由於像石頭和手等物體
05:34
cannot penetrate each other.
86
334000
1877
互不穿透。才能讓
05:36
It's therefore useful
87
336537
1792
05:38
for our brains to construct notions like "solidity" and "impenetrability,"
88
338353
6126
我們的腦袋構想出「堅實」和「不透」之觀念.
05:44
because such notions help us to navigate our bodies
89
344503
3473
因為這些觀念讓我們的身體能夠
05:48
through the middle-sized world in which we have to navigate.
90
348000
4247
於身處的「中世度」裡活動。
05:52
Moving to the other end of the scale,
91
352644
1777
移向於尺度的另一端, 則我們的祖先根本無須
05:54
our ancestors never had to navigate through the cosmos
92
354445
3390
以近光高速作宇航,
05:57
at speeds close to the speed of light.
93
357859
2364
若他們有必要的話, 我們的頭腦就
06:00
If they had, our brains would be much better at understanding Einstein.
94
360247
4606
更好明白愛因斯坦了。 我想以「中世度」
06:05
I want to give the name "Middle World" to the medium-scaled environment
95
365765
4501
稱呼這中階環境 - 於其中我們已演化出生活能力。
06:10
in which we've evolved the ability to take act --
96
370290
2398
這跟「中土大陸」無關.
06:12
nothing to do with "Middle Earth" --
97
372712
1727
是 「中世度」. (哄笑)
06:14
Middle World.
98
374463
1151
06:15
(Laughter)
99
375638
1338
06:17
We are evolved denizens of Middle World,
100
377000
3009
我們乃經演化入籍「中世度」的僑民, 這限制了
06:20
and that limits what we are capable of imagining.
101
380033
3476
我們想像所及, 直覺上您會覺得很容易
06:23
We find it intuitively easy to grasp ideas like,
102
383533
2781
掌握觀念如:
06:26
when a rabbit moves at the sort of medium velocity
103
386338
2765
當兔子以 「一般免子和其他中世度物體運動之速度」 走動
06:29
at which rabbits and other Middle World objects move,
104
389127
2849
06:32
and hits another Middle World object like a rock, it knocks itself out.
105
392000
3852
然後跟中世度裡另一個物體如石頭碰上的話, 它將被撞倒昏掉。
06:37
May I introduce Major General Albert Stubblebine III,
106
397846
5762
讓我介紹一下史達柏拜恩三世少將
06:43
commander of military intelligence in 1983.
107
403632
4333
1983年之軍事情報指揮官
06:48
"...[He] stared at his wall in Arlington, Virginia, and decided to do it.
108
408651
5072
他於維吉尼亞州的阿靈頓,盯著自己房牆,並決定要幹上了
06:54
As frightening as the prospect was, he was going into the next office.
109
414445
4859
有多驚人, 可想而知 - 他要穿越至隔壁辦公室呢.
07:00
He stood up and moved out from behind his desk.
110
420238
3770
他站起, 從檯後走出來
07:05
'What is the atom mostly made of?' he thought, 'Space.'
111
425088
3832
「原子主要由啥構成?」 他在想,「是空間」.
07:09
He started walking. 'What am I mostly made of? Atoms.'
112
429428
5166
他開始行動,「我主要由啥構成?」,「是原子」
07:15
He quickened his pace, almost to a jog now.
113
435340
2158
他加快腳步, 幾乎在小跑了.
07:18
'What is the wall mostly made of?'
114
438181
2345
「這牆主要由啥構成?」,「也不就是原子嘛」.
07:20
(Laughter)
115
440550
1001
07:21
'Atoms!'
116
441575
1150
07:23
All I have to do is merge the spaces.
117
443588
3262
「我只需將所有空間融合。」
就這樣, 少將狠狠地讓鼻子扣上辦公室的牆去
07:28
Then, General Stubblebine banged his nose hard on the wall of his office.
118
448056
5600
史達柏拜恩, 一個萬六士兵之統帥,
07:34
Stubblebine, who commanded 16,000 soldiers,
119
454339
3939
07:38
was confounded by his continual failure to walk through the wall.
120
458302
3927
為總是穿不過牆而困感不已
07:42
He has no doubt that this ability will one day be a common tool
121
462253
3068
他毫不懷疑有一天這將成為軍火庫裡一件普通武器
07:45
in the military arsenal.
122
465345
1627
誰敢跟會這個 (穿牆過壁) 的軍隊過不去?
07:46
Who would screw around with an army that could do that?"
123
466996
3815
這是《花花公子》一篇文章
07:50
That's from an article in Playboy,
124
470835
1969
07:52
which I was reading the other day.
125
472828
1715
我前兩天看時讀到的。 (哄笑)®
07:54
(Laughter)
126
474567
1607
07:56
I have every reason to think it's true;
127
476198
1896
我有充份理由相信此文之真確性; 我那天翻《花花公子》
07:58
I was reading Playboy because I, myself, had an article in it.
128
478118
3488
因為裡頭登了我自己的一篇文。 (哄笑)
08:01
(Laughter)
129
481630
5861
08:07
Unaided human intuition, schooled in Middle World,
130
487515
4650
在「中世度」裡練就之人類直覺, 若無其他協助
08:12
finds it hard to believe Galileo when he tells us
131
492189
3307
難以相信伽理略所言:
08:15
a heavy object and a light object, air friction aside,
132
495520
3394
若撇除磨擦阻抗, 下墜物不論輕重
08:18
would hit the ground at the same instant.
133
498938
1976
都會同時觸地。
08:20
And that's because in Middle World, air friction is always there.
134
500938
3554
那是因為於「中世度」裡, 空氣阻力經常存在.
08:24
If we'd evolved in a vacuum,
135
504516
1349
倘若我們是乃於真空中演化過來, 就(自然)會預期
08:25
we would expect them to hit the ground simultaneously.
136
505889
2806
它們於同一刻觸地。 又假若我們是
08:29
If we were bacteria,
137
509106
1513
08:30
constantly buffeted by thermal movements of molecules,
138
510643
3315
不斷讓粒子熱動流撞擊的細菌
08:33
it would be different.
139
513982
1151
情況就不一樣了,
08:35
But we Middle-Worlders are too big to notice Brownian motion.
140
515157
3278
但我們這些「中世度」住民太大了, 難以察見布朗(微粒子)運動。
08:38
In the same way, our lives are dominated by gravity,
141
518856
3350
同樣地, 我們的生活受引力支配
08:42
but are almost oblivious to the force of surface tension.
142
522230
3295
卻又幾乎對表面張力眊然不察。
08:45
A small insect would reverse these priorities.
143
525851
2825
一隻小昆蟲卻會將這先後倒序。
08:50
Steve Grand -- he's the one on the left,
144
530067
2453
Steve Grand - 左邊的那位
08:52
Douglas Adams is on the right.
145
532544
1555
右邊的那位是 Douglas Adams -- Steve Grand 在他的書
08:54
Steve Grand, in his book, "Creation: Life and How to Make It,"
146
534123
3698
《創造: 生命和如何創生》中, 嚴厲抨擊
08:57
is positively scathing about our preoccupation with matter itself.
147
537845
4803
我們對事物本身總是先入為主.
09:03
We have this tendency to think that only solid, material things
148
543698
3639
我們傾向只將硬梆梆的物質視為
09:07
are really things at all.
149
547361
1881
僅有實體。 於真空中跌宕起伏的電磁波
09:09
Waves of electromagnetic fluctuation in a vacuum seem unreal.
150
549811
4431
卻顯得不實在。
09:14
Victorians thought the waves had to be waves in some material medium:
151
554750
4846
維多利亞時期的人總認為波必須載存於某種物質介體裡 -
09:19
the ether.
152
559620
1150
以太。 但我們對實物感到惬意是因為
09:21
But we find real matter comforting
153
561380
2367
09:23
only because we've evolved to survive in Middle World,
154
563771
3967
我們是經過演化變成適合於「中間世界」存活,
09:27
where matter is a useful fiction.
155
567762
2746
(在裡面)「物體」是很管用之設想
09:31
A whirlpool, for Steve Grand, is a thing with just as much reality
156
571000
4238
對史提夫.格蘭特來說, 一股漩渦
09:35
as a rock.
157
575262
1150
有著跟
09:37
In a desert plain in Tanzania,
158
577978
2650
坦尚尼亞沙漠平原上一塊石塊的同等實在。
09:40
in the shadow of the volcano Ol Doinyo Lengai,
159
580652
3190
於倫蓋火山 (Ol Doinyo Lengai) 之陰影下有個火山灰形成之小丘
09:43
there's a dune made of volcanic ash.
160
583866
2057
09:46
The beautiful thing is that it moves bodily.
161
586651
3000
優美的是它整體移動著
09:50
It's what's technically known as a "barchan,"
162
590000
2207
那正是正式稱作「新月丘」的, 整個山丘
09:52
and the entire dune walks across the desert in a westerly direction
163
592231
4204
向西方橫越沙漠
09:56
at a speed of about 17 meters per year.
164
596459
3000
速度是每年17公尺。
09:59
It retains its crescent shape and moves in the direction of the horns.
165
599825
4491
它維持著其弦月形態並向著(非洲之)角移動。
10:04
What happens is that the wind blows the sand up the shallow slope
166
604340
3976
事實是,風會將沙吹過
沙丘另一端的淺坡, 接著
10:08
on the other side,
167
608340
1208
10:09
and then, as each sand grain hits the top of the ridge, it cascades down
168
609572
3745
每顆到挺達山脊的沙粒,
就會流瀉注入山丘之內
10:13
on the inside of the crescent,
169
613341
1458
10:14
and so the whole horn-shaped dune moves.
170
614823
2996
整號角形山丘就是這樣一直往前走。
10:19
Steve Grand points out that you and I are, ourselves,
171
619803
3490
史提夫指出, 你我本身
10:23
more like a wave than a permanent thing.
172
623317
2932
就更像一個浪, 而不是一個恒長不變的東西
10:26
He invites us, the reader,
173
626877
1851
他邀請我們, 讀者, 去回想
10:28
to think of an experience from your childhood,
174
628752
2405
一段童年體驗, 某些您清晰記得,
10:31
something you remember clearly,
175
631181
1558
10:32
something you can see, feel, maybe even smell,
176
632763
3034
某些您能見得, 能觸及, 甚至可嗅到,
10:35
as if you were really there.
177
635821
1715
好比您此刻正處身其中的情況。
10:37
After all, you really were there at the time, weren't you?
178
637560
3773
說來, 您確曾身處其中嚒?
10:41
How else would you remember it?
179
641357
2104
若不, 您是如何記起?
10:43
But here is the bombshell: You weren't there.
180
643485
2658
我要向您投彈了: 您當時並不在場!
10:46
Not a single atom that is in your body today
181
646167
2417
在事件發生時,
10:48
was there when that event took place.
182
648608
2510
您身上的所有原子不曾出現於當下。物質流徙
10:51
Matter flows from place to place
183
651142
2143
10:53
and momentarily comes together to be you.
184
653309
2928
並暫時聚合形成「您」而已。
10:56
Whatever you are, therefore,
185
656261
1352
故此, 無論您現在是什麽, 都不再是
10:57
you are not the stuff of which you are made.
186
657637
4082
組成那之前的您的「餡料」了。
11:01
If that doesn't make the hair stand up on the back of your neck,
187
661743
3048
若這還不讓您毛管直豎,
11:04
read it again until it does, because it is important.
188
664815
3316
多讀一遍直至您看懂吧, 因為實在太重要了!
11:09
So "really" isn't a word that we should use with simple confidence.
189
669283
4094
所以,且別隨便說出 「事實上」 這詞
11:14
If a neutrino had a brain,
190
674000
2272
假若一顆微中子有
11:16
which it evolved in neutrino-sized ancestors,
191
676296
2742
一個由微中子祖先演化而來之腦袋,
11:19
it would say that rocks really do consist of empty space.
192
679062
4001
它會說石頭 「事實上」由「空間」所構成
11:23
We have brains that evolved in medium-sized ancestors
193
683833
2793
我們卻是有由「中形祖先」演化而來的腦袋,
11:26
which couldn't walk through rocks.
194
686650
2000
無法從石頭穿過去
11:29
"Really," for an animal, is whatever its brain needs it to be
195
689030
4620
對於動物來說, 所謂「真實」 就是其按腦袋所要求,
11:33
in order to assist its survival.
196
693674
2000
的維生指涉
11:36
And because different species live in different worlds,
197
696075
2747
由於不動物種生活於不同(大小領域)世界之中,
11:38
there will be a discomforting variety of "reallys."
198
698846
4087
確有某些「現實」並不讓我們感到愜意。
11:45
What we see of the real world is not the unvarnished world,
199
705370
4237
我們所見之現實世界並非原型
11:49
but a model of the world, regulated and adjusted by sense data,
200
709631
4281
而是一個透過調適感知數據而建構,
11:53
but constructed so it's useful for dealing with the real world.
201
713936
3983
並賴以有效處理現實之模式。
11:58
The nature of the model depends on the kind of animal we are.
202
718459
3158
模式之性質取決於我們是那一種動物
12:02
A flying animal needs a different kind of model
203
722000
3633
飛翔的動物需要一種
12:05
from a walking, climbing or swimming animal.
204
725657
2700
有異於走動、爬動或游動物種的模式
12:08
A monkey's brain must have software capable of simulating
205
728381
4420
猿猴的腦必須有軟體
12:12
a three-dimensional world of branches and trunks.
206
732825
3295
模擬樹枝樹幹的三度空間
12:16
A mole's software for constructing models of its world will be customized
207
736144
4377
鼴鼠建構其世界的軟體
當然是為「地底應用」而量身訂做的
12:20
for underground use.
208
740545
1952
12:22
A water strider's brain doesn't need 3D software at all,
209
742521
3867
水黽的腦袋完全無需3D軟體,
12:26
since it lives on the surface of the pond,
210
746412
2150
因為牠只於生活於
12:28
in an Edwin Abbott flatland.
211
748586
2320
Edwin Abbott 平原的湖面上
12:32
I've speculated that bats may see color with their ears.
212
752652
4029
我曾推想蝙蝠或許能以聽覺分辨顏色
12:37
The world model that a bat needs in order to navigate
213
757390
3194
蝙蝠賴以活動往來,
12:40
through three dimensions catching insects
214
760608
1977
捕食昆蟲的世界模式
12:42
must be pretty similar to the world model that any flying bird --
215
762609
3073
必然跟飛鳥的世界模式頗相近,
12:45
a day-flying bird like a swallow -- needs to perform the same kind of tasks.
216
765706
3878
一隻於日間飛行的鳥如麻雀, 亦要
做同樣的工夫
12:50
The fact that the bat uses echoes in pitch darkness
217
770000
3290
蝙蝠於漆黑中利用回聲
12:53
to input the current variables to its model,
218
773314
2767
以輸入當下之變數
12:56
while the swallow uses light, is incidental.
219
776105
2769
麻雀則用光, 兩者皆偶發
12:59
Bats, I've even suggested, use perceived hues, such as red and blue,
220
779456
5278
我甚至提出, 蝙蝠利用意識到的色彩, 像紅和藍
13:04
as labels, internal labels, for some useful aspect of echoes --
221
784758
6115
作標記, 作部分回聲可用處的「內標」 -
13:10
perhaps the acoustic texture of surfaces, furry or smooth and so on --
222
790897
4547
例如平面的「聲質」、 毛狀、平滑...等等。
13:15
in the same way as swallows or indeed, we, use those perceived hues --
223
795468
4563
麻雀, 以至我們亦確實以同樣方法
去感識顏色 - 紅彩, 藍彩...以此類推 -
13:20
redness and blueness, etc. --
224
800055
1604
13:21
to label long and short wavelengths of light.
225
801683
2872
為長短光波作標記。
13:24
There's nothing inherent about red that makes it long wavelength.
226
804579
3327
紅色並無任何拜必須為長光波之本質
13:28
The point is that the nature of the model is governed by how it is to be used,
227
808747
4224
要點是模式之性質取決於
其被如何應用, 而非其感官形態.
13:32
rather than by the sensory modality involved.
228
812995
3887
13:37
J.B.S. Haldane himself had something to say about animals
229
817871
2820
霍爾登有些
13:40
whose world is dominated by smell.
230
820715
2285
關於那些被嗅覺支配其世界之動物的見解:
13:43
Dogs can distinguish two very similar fatty acids, extremely diluted:
231
823535
5834
即使經過極端稀釋, 狗隻仍能分辨兩種極接近之脂肪酸:
13:49
caprylic acid and caproic acid.
232
829393
2684
辛酸和已酸。
13:52
The only difference, you see,
233
832101
1398
唯一分野, 是兩者其一。
13:53
is that one has an extra pair of carbon atoms in the chain.
234
833523
3284
(分子)鍊上多出一對碳分子。
13:56
Haldane guesses that a dog would probably be able to place the acids
235
836831
4488
霍爾登估計狗隻以嗅覺, 將兩種酸
14:01
in the order of their molecular weights by their smells,
236
841343
3444
按其分子重量依次排序,
14:04
just as a man could place a number of piano wires
237
844811
3122
正如一個人將一組琴弦
14:07
in the order of their lengths by means of their notes.
238
847957
3205
按其音高排好長短次序。
14:11
Now, there's another fatty acid, capric acid,
239
851726
3787
現在, 再有另一種叫癸酸
14:15
which is just like the other two,
240
855537
1612
跟前兩種基本上一樣,
14:17
except that it has two more carbon atoms.
241
857173
2554
只是多出兩個碳分子。
14:20
A dog that had never met capric acid would, perhaps,
242
860481
2823
一頭狗即若從未碰過癸酸, 亦能
14:23
have no more trouble imagining its smell
243
863328
2953
想像出其氣味, 情況不會難於我們
14:26
than we would have trouble imagining a trumpet, say,
244
866305
3156
聽過吹號後想像
14:29
playing one note higher than we've heard a trumpet play before.
245
869485
4390
吹出比剛聽過的高一個音。
14:36
Perhaps dogs and rhinos and other smell-oriented animals smell in color.
246
876549
6282
或許狗隻犀牛和其他氣味主導的動物
是在嗅「色」。 這樣說來理論就
14:43
And the argument would be exactly the same as for the bats.
247
883268
2865
就跟蝙蝠的情況無異了。
14:48
Middle World -- the range of sizes and speeds
248
888253
3687
我們經演化適應之中間世界
14:51
which we have evolved to feel intuitively comfortable with --
249
891964
3588
- 其範圍裡的大小和速度
14:55
is a bit like the narrow range of the electromagnetic spectrum
250
895576
3768
有點像我們於窄幅電磁譜上
14:59
that we see as light of various colors.
251
899368
2828
將光看成不同顏色
15:02
We're blind to all frequencies outside that,
252
902220
2320
除非借助儀器,
15:04
unless we use instruments to help us.
253
904564
2504
否則譜外頻率我們根本就看不到。
15:09
Middle World is the narrow range of reality
254
909000
3142
我們將中間世界裡的片面現實認定為正常
15:12
which we judge to be normal, as opposed to the queerness
255
912166
3254
超小/超巨和超速世界的一切
15:15
of the very small, the very large and the very fast.
256
915444
3560
則相對看成詭異。
15:20
We could make a similar scale of improbabilities;
257
920000
2849
我們可以為「不可能性」作個類似量度
15:22
nothing is totally impossible.
258
922873
2611
沒有甚麼是完全不可能的。
15:25
Miracles are just events that are extremely improbable.
259
925508
3261
奇蹟可說成是「極端不可能的事件」而矣。
15:29
A marble statue could wave its hand at us;
260
929230
2829
一個石像可能正在向我們招手 - 組成其
15:32
the atoms that make up its crystalline structure
261
932083
2863
晶體結構的原子確是在前後顛動
15:34
are all vibrating back and forth anyway.
262
934970
2217
15:37
Because there are so many of them,
263
937211
1658
由於數量極多,
15:38
and because there's no agreement among them
264
938893
2083
其中又並沒一致之
15:41
in their preferred direction of movement,
265
941000
2076
作用方向, 之所以我們眼見的
15:43
the marble, as we see it in Middle World, stays rock steady.
266
943100
4065
是「中間世界」裡一尊穩坐著的石像。
15:47
But the atoms in the hand could all just happen to move
267
947189
2610
可其手裡的原子卻正
15:49
the same way at the same time, and again and again.
268
949823
2624
同時照樣反覆在移動。
15:52
In this case, the hand would move,
269
952471
1649
按此, 手會有動作, 我們會看到它向我們揮動。
15:54
and we'd see it waving at us in Middle World.
270
954144
3783
但在「中間世界」裡跟這相悖之種種是如許不計其數,
15:57
The odds against it, of course, are so great
271
957951
2586
16:00
that if you set out writing zeros at the time of the origin of the universe,
272
960561
4480
多得好比您由宇宙起始一刻開始畫 0
到此時此刻
16:05
you still would not have written enough zeros to this day.
273
965065
3015
您還沒有畫上足夠的 0 那樣多。
16:09
Evolution in Middle World has not equipped us
274
969206
3028
16:12
to handle very improbable events; we don't live long enough.
275
972258
3627
於中間世界裡的演化並沒有裝備我們去處理
極度不可能的情境; 我們根本活得不夠久。
16:16
In the vastness of astronomical space and geological time,
276
976497
4691
於巨大無垠之天際和時空裡
16:21
that which seems impossible in Middle World
277
981212
2798
那些於「中間世界」看來不可能的
16:24
might turn out to be inevitable.
278
984034
2249
可都變得理所當然了。
16:28
One way to think about that is by counting planets.
279
988135
3565
考量這個的一個方法是點數星星.
16:31
We don't know how many planets there are in the universe,
280
991724
2682
我們不知道宇宙中確實總共有多小行星,
16:34
but a good estimate is about 10 to the 20, or 100 billion billion.
281
994430
3451
合理估計是10的20次方, 或一億萬億顆.
16:38
And that gives us a nice way to express our estimate of life's improbability.
282
998374
4949
這可算是我們對於生命之「不可能性」
一個不錯的表述。
16:44
We could make some sort of landmark points along a spectrum of improbability,
283
1004710
3693
這可能會於看來像電磁波譜
的「不可能性譜表」 上
16:48
which might look like the electromagnetic spectrum we just looked at.
284
1008427
4276
留下某些記號吧。
16:53
If life has arisen only once on any --
285
1013568
2841
若生命只曾冒起一次
16:57
life could originate once per planet, could be extremely common
286
1017850
5223
我意思是, 生命若於每顆行星都冒起一次
則可算是極尋常, 但若生命的出現乃每顆恆星,
17:03
or it could originate once per star
287
1023097
2564
17:05
or once per galaxy or maybe only once in the entire universe,
288
1025685
4992
或每個星系, 甚或整個宇宙的單一事件,
17:10
in which case it would have to be here.
289
1030701
2185
則我們相信正正身處其中。而天上某處
17:12
And somewhere up there would be the chance
290
1032910
2051
17:14
that a frog would turn into a prince,
291
1034985
1801
青蛙可變成王子
17:16
and similar magical things like that.
292
1036810
2881
種種類似奇事都可以發生
17:20
If life has arisen on only one planet in the entire universe,
293
1040207
3868
若生命於整個宇宙中只曾於一個行星冒起
17:24
that planet has to be our planet, because here we are talking about it.
294
1044099
3996
那行星就是我們的地球, 因為我們正在此討論其事 !
17:28
And that means that if we want to avail ourselves of it,
295
1048119
2652
意思是若我們作如是想
17:30
we're allowed to postulate chemical events in the origin of life
296
1050795
3837
則我們大可就生命起始之化學情狀作出假設
17:34
which have a probability as low as one in 100 billion billion.
297
1054656
3880
其可能性低於億萬億分之一
17:39
I don't think we shall have to avail ourselves of that,
298
1059036
2633
我並不認為我們該這樣做
17:41
because I suspect that life is quite common in the universe.
299
1061693
2967
因為我估計宇宙中生機處處
17:44
And when I say quite common, it could still be so rare
300
1064684
3038
我雖說普遍, 但一個生命島跟另一個遇上的機會
17:47
that no one island of life ever encounters another,
301
1067746
4125
卻仍是極其稀有的。
17:51
which is a sad thought.
302
1071895
1580
這想起來真有點悲傷
17:54
How shall we interpret "queerer than we can suppose?"
303
1074665
3263
「比我們能想像的更離奇」該如何詮釋呢?
17:58
Queerer than can in principle be supposed,
304
1078397
2255
比「基本上能想像的」離奇,
18:00
or just queerer than we can suppose, given the limitations
305
1080676
3438
或「比我們有限的大腦所能想像的更奇」
18:04
of our brain's evolutionary apprenticeship in Middle World?
306
1084138
4262
(我們經演化所得「中間世界」大腦)
18:09
Could we, by training and practice,
307
1089000
1854
我們可通過訓練和實習
18:10
emancipate ourselves from Middle World
308
1090878
2190
擺脫中間世界之囿限, 而獲取對「極少和極大」之某些直覺的,
18:13
and achieve some sort of intuitive as well as mathematical understanding
309
1093092
4643
甚或數學算計的理解麼?
18:17
of the very small and the very large?
310
1097759
2139
我真的不知道答案。
18:19
I genuinely don't know the answer.
311
1099922
2112
18:22
I wonder whether we might help ourselves to understand, say, quantum theory,
312
1102058
3634
我懷疑我們是否可幫助自己瞭解, 譬如說,
18:25
if we brought up children to play computer games
313
1105716
3260
量子理論,
18:29
beginning in early childhood,
314
1109000
1582
方法是以從少培養孩子玩一些
18:30
which had a make-believe world of balls going through two slits on a screen,
315
1110606
3921
有波波穿梭於裡二維虛擬世界的電腦遊戲
18:34
a world in which the strange goings-on of quantum mechanics were enlarged
316
1114551
3988
其中量子力學的種種奇怪活動
於電腦的虛擬世界中被放大
18:38
by the computer's make-believe,
317
1118563
1894
18:40
so that they became familiar on the Middle-World scale of the stream.
318
1120481
3845
於是他們(即使)於中間世界的流程上亦逐漸(對量子微世道)熟悉起來。
18:44
And similarly, a relativistic computer game,
319
1124350
2554
同樣地, 一個於屏幕上展示「勞侖茲收縮變換」的
18:46
in which objects on the screen manifest the Lorentz contraction, and so on,
320
1126928
5316
「相對論」電玩, 依此類推,
18:52
to try to get ourselves -- to get children into the way of thinking about it.
321
1132268
4424
以嘗試將我們引帶至該種思考方式 -
領帶孩子進入(積極)思考的路徑上
18:57
I want to end by applying the idea of Middle World
322
1137124
3881
我想將 「中間世界」的觀點
19:01
to our perceptions of each other.
323
1141029
1971
應用於我們的相互觀照上
19:03
Most scientists today subscribe to a mechanistic view of the mind:
324
1143735
4287
現時大部分科學家都認同理智乃機械性的看法:
19:08
we're the way we are because our brains are wired up as they are,
325
1148046
3404
我們的所有舉措思路, 都早已鋪設於我們的腦袋中
19:11
our hormones are the way they are.
326
1151474
1652
我們(體內)的荷爾蒙亦不外如是(種種化學激素)
19:13
We'd be different, our characters would be different,
327
1153150
2511
我們的神經結構或生理化學若有所不同,
19:15
if our neuro-anatomy and our physiological chemistry were different.
328
1155685
3863
我們就是不一樣的人, 有不一樣的性格了.
19:19
But we scientists are inconsistent.
329
1159868
2016
但我們科學家並不一致, 若是的話,
19:22
If we were consistent,
330
1162424
1381
19:23
our response to a misbehaving person, like a child-murderer,
331
1163829
3313
那我們對一個, 譬如謀殺兒童犯的反應,
19:27
should be something like:
332
1167166
1334
就應該像是, 這單位有個壞掉了的部件,
19:28
this unit has a faulty component; it needs repairing.
333
1168524
3246
要修理處置了。 我們並不這樣說。
19:31
That's not what we say.
334
1171794
1182
19:33
What we say -- and I include the most austerely mechanistic among us,
335
1173000
4163
我們是說 - 我將我們當中持最嚴肅機械論的包括在內,
19:37
which is probably me --
336
1177187
1214
那個大可能正是我本人 -
19:38
what we say is, "Vile monster, prison is too good for you."
337
1178425
3810
我們會說的是, 「惡魔, 監禁實在太便宜你了」
19:42
Or worse, we seek revenge, in all probability thereby triggering
338
1182259
3717
甚或更糟, 我們會圖謀報復, 以致極可能觸發
19:46
the next phase in an escalating cycle of counter-revenge,
339
1186000
3570
下一波的升級循環報復,
19:49
which we see, of course, all over the world today.
340
1189594
2458
這種現象於當今世界觸目皆是。
19:52
In short, when we're thinking like academics,
341
1192496
2276
簡言之, 當我們像學者一樣地思考時,
19:54
we regard people as elaborate and complicated machines,
342
1194796
3299
我們將人看成精密複雜的機體,
19:58
like computers or cars.
343
1198119
2145
像電腦和汽車一樣, 但當我們恢復人性立場時
20:00
But when we revert to being human,
344
1200663
2014
20:02
we behave more like Basil Fawlty, who, we remember,
345
1202701
3711
我們就變得更像 Basil Fawlty, 我們都記得
20:06
thrashed his car to teach it a lesson,
346
1206436
1839
他在《美食夜》—片裡, 將開不動的車子砸了
20:08
when it wouldn't start on "Gourmet Night."
347
1208299
2275
為要給它一個教訓 ! (哄笑)
20:10
(Laughter)
348
1210598
1353
20:12
The reason we personify things like cars and computers
349
1212308
3984
我們之所以將車和電腦等物件擬人化
20:16
is that just as monkeys live in an arboreal world
350
1216316
3368
就正如猴子活在樹上
20:19
and moles live in an underground world
351
1219708
2662
鼴鼠活於地下
20:22
and water striders live in a surface tension-dominated flatland,
352
1222394
3814
大水黽活在受制於表面張力的一種平面 (指水面)
20:26
we live in a social world.
353
1226232
2129
我們則活在社區, 於人海中游過 -
20:28
We swim through a sea of people --
354
1228385
2186
20:30
a social version of Middle World.
355
1230595
2333
一種群居模式的中間世界
20:33
We are evolved to second-guess the behavior of others
356
1233562
3715
因著總要猜度其它人的行為表現
20:37
by becoming brilliant, intuitive psychologists.
357
1237301
3727
我們都演化成精明而深具具覺的心理專家。
20:41
Treating people as machines
358
1241464
1392
將人看作機械
20:42
may be scientifically and philosophically accurate,
359
1242880
3515
或許於科學及哲理而言俱屬正確,
20:46
but it's a cumbersome waste of time
360
1246419
1913
但這將讓要推想人家下一步將幹啥的事兒
20:48
if you want to guess what this person is going to do next.
361
1248356
3161
變得費時之極.
20:52
The economically useful way to model a person
362
1252000
2976
要將一個人扼要定位
20:55
is to treat him as a purposeful, goal-seeking agent
363
1255000
3611
是視之為一個具目的, 有所求,
20:58
with pleasures and pains, desires and intentions,
364
1258635
2416
有喜有悲, 有想望,
21:01
guilt, blame-worthiness.
365
1261075
1682
罪疚, 可責性,
21:03
Personification and the imputing of intentional purpose
366
1263456
4110
人格化及歸因於有意圖
21:07
is such a brilliantly successful way to model humans,
367
1267590
3643
是描模人類的妙法,
21:11
it's hardly surprising the same modeling software
368
1271257
3121
難怪同一個想像方式
21:14
often seizes control when we're trying to think about entities
369
1274402
3574
經常於我們設想不相容實體
21:18
for which it's not appropriate, like Basil Fawlty with his car
370
1278000
3371
如 [巴素和他的車] 時就作主導了
21:21
or like millions of deluded people, with the universe as a whole.
371
1281395
4941
[千百萬惑民相對於這宇宙] 亦如是. (哄笑)
21:26
(Laughter)
372
1286717
2259
21:29
If the universe is queerer than we can suppose,
373
1289000
3141
若宇宙真的是比我們能想像的更離奇詭異,
21:32
is it just because we've been naturally selected
374
1292165
2502
那只是因為我們是經由物競天擇所變成
21:34
to suppose only what we needed to suppose
375
1294691
2969
只利便我們於「更新世時期」 的非洲存活
21:37
in order to survive in the Pleistocene of Africa?
376
1297684
2316
的需要作想像?
21:40
Or are our brains so versatile and expandable that we can train ourselves
377
1300863
5700
還是我們的腦袋實在太靈太活以至我們可
可訓練自己突破演化的框框?
21:46
to break out of the box of our evolution?
378
1306587
2655
21:49
Or finally, are there some things in the universe so queer
379
1309909
4413
又或, 最後, 宇宙中可有些甚麼是離奇到
21:54
that no philosophy of beings, however godlike, could dream them?
380
1314346
5867
任何人, 無論多神, 其思想亦無從想像?
22:00
Thank you very much.
381
1320737
1152
22:01
(Applause)
382
1321913
2499
謝謝各位。
關於本網站

本網站將向您介紹對學習英語有用的 YouTube 視頻。 您將看到來自世界各地的一流教師教授的英語課程。 雙擊每個視頻頁面上顯示的英文字幕,從那裡播放視頻。 字幕與視頻播放同步滾動。 如果您有任何意見或要求,請使用此聯繫表與我們聯繫。

https://forms.gle/WvT1wiN1qDtmnspy7