# These 2 riddles are the same. So why is one harder?

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http://www.fitelson.org/probability/wason.pdf

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### 28 thoughts on “These 2 riddles are the same. So why is one harder?”

• September 17, 2017 at 12:10 am

Cuz you make it harder. Dumb af

• September 17, 2017 at 12:10 am

The only reason the second one was easier for us human is because we know that u arent allowed to drink alcohol under 18 everybody knows it so for our brain it's the most logic option

• September 17, 2017 at 12:10 am

I think you phrased the question wrong at the start. If you had said "Even numbers are not allowed to have blue color on the other side. Which cards must be turned to see if they break the rule?" it would have been just as easy to solve as the second one.

• September 17, 2017 at 12:10 am

I'm guessing it's the blue card because we know the 11 odd and blue and the 8 is red and the red HAS to be even but it doesn't say the blue have to be odd

• September 17, 2017 at 12:10 am

Please create a version two of this video and swap the riddles?
I want to see people's reactions to see if knowledge of the riddle changes outcome of the answers.

• September 17, 2017 at 12:10 am

Pretty much, it was easier to know intuitively that adults can drink juice but not that odd numbers can have a red back. One is extra context we learn from our standard lives, and the other isn't. If we were grown up on such cards, it would either be tricker or easier. "Understanding the question" is a common suggestion when tackling problems.

• September 17, 2017 at 12:10 am

pretty sure you only to flip the blue one, if it is even, it breaks the rule, you win. if it is odd, no rule broken, therefore the 8 must be blue, breaking the rule. the only given fact was the rule, but the question presupposes an answer…

• September 17, 2017 at 12:10 am

I have another theory as to why we struggle more to solve the first riddle. It's because our tendency is to naturally apply the same logic to a clear opposite scenario. When we see the rule about even numbers, we naturally believe there's a rule about odd numbers, because there are only 2 types of the numbers in the world, even though there is no rule regarding odd numbers. But when we see the age requirement, we don't immediately think about the other possibilities as though they apply. We don't automatically think "oh then a 50-year-old person is not supposed to drink juice". There are simply too many ages possibly involved. And the wording is "if you're underage" and not "if you're 16". If the requirement is as strict as the first scenario, we might be thinking the same.

• September 17, 2017 at 12:10 am

The reason people get the first version of the riddle wrong has nothing to do with the social situation logic transfer bullshit answer given in this video. There are 9 types of logic used by people. Waaay back when this riddle (the first version) was developed people were taught to use classical logic in school, and back then most of the people who were given this riddle got it right. Nowadays people are taught mathematical logic, which gives a different answer to the first riddle. The reason the second version of the riddle is still answered correctly is because people have always learned how to use that type of social rule logic, but the first version can only be answered correctly with classical logic, which most people won't learn unless they got to private school or take philosophy courses.

• September 17, 2017 at 12:10 am

THE PAUSE IS TOO SHORT!

• September 17, 2017 at 12:10 am

Holy shit how can people be so stupid. Just take 2 seconds to think and it's solved

• September 17, 2017 at 12:10 am

This vid is bull, because in the game alcohol riddle only two have to be checked, the vodka and the 16 year old, but in the color one three cards can break the rule not two like in the alcohol riddle

• September 17, 2017 at 12:10 am

The reason most people chose the red card is because they misunderstood the question and thought that if the card was red it must be even. The other variation of the question is easy because of the way the question was asked and whatever you said.

• September 17, 2017 at 12:10 am

What if the 11 had a red back. The rules do not say that if it is odd, no matter what, it MUST be blue. It could have been any of the cards

• September 17, 2017 at 12:10 am

You are not really explaining what the riddle shows. You kinda explained the riddle only. We use our cheater detection brain modules to solve the second riddle. These are modules that evolved so that we could spot cheaters in our group and punish them so that they would not cheat us anymore.

• September 17, 2017 at 12:10 am

The second one was easier because the wording was easier. Try rephrase the first one as "If a card is even, it must not be blue". No check if it as hard as before.

• September 17, 2017 at 12:10 am

You can turn over either the 8 or the blue card in the first one. You don't need to turn over both.

• September 17, 2017 at 12:10 am

This is not true, they are not identical because in the second one you need to pick the cards that are easier to spot in the rule (i don't know how to describe it but you know what i mean)

• September 17, 2017 at 12:10 am

This question is present in the chapter Mathematical Reasoning of class 9 NCERT book(used in India).So it is quite easy.

• September 17, 2017 at 12:10 am

The second was easier because were alcoholics

• September 17, 2017 at 12:10 am

Interesting insights into the way we look at information

• September 17, 2017 at 12:10 am

the duality of odds vs evens and red vs blue causes the initial reaction of assuming the rule works both ways. but when presented with a familiar event to recognize (preventing underage drinking) the cognitive process flows much more smoothly. or at least thats my theory

• September 17, 2017 at 12:10 am

But the rule doesn't say a blue card can't have a even number

• September 17, 2017 at 12:10 am

I got the first one wrong because he is the worst narrator ever. How he described the question was horrible.
The second one was the same thing, he sucked at explaining what to do.

• September 17, 2017 at 12:10 am

Trick is in phrasing the question. The second riddle should be asked like. " People with age <18 must drink juice". You should have not use the word alcohol there. respctively try asking the first riddle. "Even numbered card must not be blue"