How do you know whom to trust? - Ram Neta

Kako znate kome vjerovati? - Ram Neta

996,382 views

2013-04-30 ・ TED-Ed


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How do you know whom to trust? - Ram Neta

Kako znate kome vjerovati? - Ram Neta

996,382 views ・ 2013-04-30

TED-Ed


Dvaput kliknite na engleske titlove ispod za reprodukciju videozapisa.

00:00
Transcriber: Andrea McDonough Reviewer: Bedirhan Cinar
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Prevoditelj: Diana Žunić Recezent: Ivan Stamenković
00:14
You believe that the Sun is much larger than the Earth,
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Vjerujete da je Sunce mnogo veće od Zemlje,
00:18
that the Earth is a roughly spherical planet
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da je Zemlja okruglog oblika,
00:20
that rotates on its axis every 24 hours
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da se okrene oko svoje osi u roku 24 sata
00:23
and it revolves around the Sun once every 365 days.
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te da obiđe Sunce jedanput svakih 365 dana.
00:28
You believe that you were born on a particular date,
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Vjerujete u to da ste rođeni na određeni datum,
00:32
that you were born to two human parents
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da su dvoje ljudi vaši roditelji
00:34
and that each of your human parents
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te da su vaša oba roditelja
00:36
was born on an earlier date.
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rođena prije vas.
00:38
You believe that other human beings
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Vjerujete da ostali ljudi
00:40
have thoughts and feelings like you do
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imaju misli i osjećaje baš kao i vi
00:43
and that you are not surrounded by humanoid robots.
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i da niste okruženi humanoidnim robotima.
00:46
You believe all of these things and many more,
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Vjerujete u sve ove stvari i u još mnoge druge
00:49
not on the basis of direct observation,
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i ne na temelju direktne observacije
00:52
which can't, by itself, tell you very much
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koja vam sama po sebi može mnogo toga reći
00:55
about the relative size and motion
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o relativnoj veličini i kretnjama
00:57
of the Sun and the Earth,
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Sunca i Zemlje
00:58
or about your own family history,
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ili o povijesti vaše obitelji
01:00
or about what goes on in the minds of other humans.
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ili o tome što se događa u ljudskim umovima.
01:04
Instead, these beliefs are mostly based on
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Ali vaša su vjerovanja većinom bazirana na
01:07
what you've been told.
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tome što vam je rečeno.
01:09
Without spoken and written testimonies,
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Bez pisanih ili usmenih dokaza
01:11
human beings could not pass on knowledge
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ljudska bića ne mogu prenijeti znanje
01:13
from one person to another,
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od jedne osobe do druge,
01:15
let alone from one generation to another.
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a kamo li s jedne generacije na drugu.
01:17
We would know much, much less
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Bez toga znali bismo mnogo, mnogo manje
01:19
about the world around us.
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o svijetu koji nas okružuje.
01:22
So learning about a topic
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Učenje o temema
01:23
by asking an expert on that topic,
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na način da pitamo stručnjaka za određeno područje
01:25
or appealing to authority,
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ili nekoga koga smatramo autoritetom
01:28
helps us gain knowledge,
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pomaže nam usvojiti znanje,
01:30
but, it doesn't always.
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ali ne uvijek.
01:32
Even the most highly respected authorities
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Čak i najcjenjeniji autoriteti
01:34
can turn out to be wrong.
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mogu biti u krivu.
01:36
Occasionally this happens
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S vremena na vrijeme to se dogodi
01:38
because a highly respected authority is dishonest
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jer cijenjeni autoriteti mogu biti neiskreni
01:41
and claims to know something
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i tvrditi da znaju nešto
01:42
that she or he really doesn't know.
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što ubiti i ne znaju.
01:46
Sometimes it happens just because they make a mistake.
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Nekad se pak to dogodi jer su jednostavno pogriješili.
01:50
They think they know when they don't know.
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Misle da znaju kad ubiti ne znaju.
01:53
For example, a number of respected economists
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Na primjer, velik broj cijenjenih ekonomista
01:56
did not expect the financial collapse of 2008.
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nije očekivao financijski kolaps 2008. godine.
02:00
They turned out to be wrong.
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Ispalo je da su u krivu.
02:02
Maybe they were wrong
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Možda su pogriješili
02:03
because they were overlooking some important evidence.
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jer su propustili obratiti pozornost na neke bitne dokaze.
02:06
Maybe they were wrong because they were misinterpreting
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Možda su bili u krivu jer su krivo interpretirali
02:08
some of the evidence they had noticed.
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neke dokaze koje jesu uočili.
02:10
Or maybe they were wrong
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Ili su jednostavno bili u krivu
02:11
simply because they were reasoning carelessly
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zato što nisu razmišljali dovoljno precizno
02:13
from the total body of their evidence.
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o kompletnom predmetu.
02:15
But whatever the reason,
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Bez obzira na razlog,
02:16
they turned out to be wrong
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bili su u krivu
02:18
and many people who trusted their authority
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i mnogo ljudi koje im je vjerovalo
02:20
ended up losing lots of money,
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izgubilo je mnogo svojeg novca
02:22
losing lots of other people's money,
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i novca drugih ljudi,
02:25
on account of that misplaced trust.
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zbog toga što su imali povjerenje u krive ljude.
02:27
So while appealing to authority
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Zato polaganje vjere u autoritete
02:29
can sometimes provide us with valuable knowledge,
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nam ponekad može donjeti zlata vrijedno znanje,
02:32
it also can sometimes be the cause
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ali isto tako i može prouzročiti
02:34
of monumental errors.
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monumentalne pogreške.
02:36
It's important to all of us to be able to distinguish
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Bitno je da znamo razlikovati
02:39
those occasions on which we can safely and reasonably trust authority
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kada zaista možemo zasigurno vjerovati autoritetima
02:43
from those occasions on which we can't.
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a kada ne možemo.
02:46
But how do we do that?
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Ali kako to postići?
02:49
In order to do that,
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Kako bismo to postigli,
02:50
nothing is more useful than
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ništa nam nije tako korisno kao
02:52
an authority's track record on a particular topic.
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prijašnja iskustva s mišljenjima autoriteta o određenim temama.
02:55
If someone turns out to perform well
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Ako ispadne da je netko uradio dobro
02:57
in a given situation much of the time,
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više puta u nekoj situaciji
02:59
then it's likely that he or she will continue
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tada je veća vjerojatnost da će i nastaviti
03:02
to perform well in that same situation,
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s dobrim postupcima u toj situaciji,
03:04
at least in the near term.
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barem u skorije vrijeme.
03:06
And this generalization holds true
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I ova generalizacija je točna
03:08
of the testimony of authorities as much as of anything else.
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ne samo po pitanju autoriteta već i za većinu drugih stvari.
03:12
If someone can consistently pick winners
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Ako netko može kontinuirano birati pobjednike
03:14
in both politics and baseball,
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i u politici i u bejzbolu,
03:16
then we should probably trust him or her
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onda ćemo vjerovatno više vjerovati njoj ili njemu
03:18
to keep on picking winners in both politics or baseball,
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da će nastaviti birati pobjednike u oboje politici i bejzbolu,
03:22
though maybe not in other things
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iako možda ne i u drugim stvarima
03:23
where his or her track record may be less stellar.
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u kojima njihova reputacija možda i nije tako bajna.
03:26
If other forecasters have a poorer track record
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Ako ostali prognostičari imaju lošiju reputaciju
03:29
on those same two topics,
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na te dvije teme,
03:31
then we shouldn't trust them as much.
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tada ne bismo trebali im toliko vjerovati.
03:34
So whenever you're considering whether
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Kada god razmišljate o prognozi vremena
03:36
to trust the testimony of some authority,
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i vjerujete autoritetima,
03:39
the first question to ask yourself is,
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prvo pitanje koje si morate postaviti je
03:42
"What's their track record on this topic?"
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"Koliko su njihove prijašnje prognoze bile točne?"
03:45
And notice that you can apply
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i primjetite da možete primijeniti
03:47
the very same lesson to yourself.
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tu istu lekciju sami na sebe.
03:50
Your instincts tell you that you've just met Mr. Right,
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Vaši vam instinkti govore da ste upoznali onog pravog,
03:54
but what sort of track record do your instincts have
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ali koliko je vaš instinkt bio točan u prošlosti
03:57
on topics like this one?
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po pitanju ovakve teme?
03:59
Have your instincts proven themselves
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Jesu li se vaši instinkti dokazali
04:01
to be worthy of your trust?
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kao vjerodostojni?
04:03
Just as we judge other people's testimony
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Baš kao što sudimo tuđe tvrdnje
04:06
by their track record,
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prema njihovoj povijesti
04:07
so, too, we can judge our own instincts
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isto tako možemo suditi i naš vlastiti instinkt
04:10
by their track record.
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prema njegovoj povijesti.
04:12
And this brings us one step closer
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Na ovaj način smo već jedan korak bliže
04:14
to an objective view of ourselves
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objektivnom gledanju sebe
04:16
and our relation to the world around us.
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i našeg odnosa prema svijetu oko nas.
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