0 sats \ 6 replies \ @0xbitcoiner 11 Nov \ on: [Daily puzzle] Eye-land problem science
Do people know that 100 + 100 people are on the island? If they all get together in one place, everyone can tell what color their eyes are.
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0 sats \ 5 replies \ @senf 11 Nov
They know there are 200 people on the island, and each person knows the eye color of 199 of them.
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0 sats \ 4 replies \ @south_korea_ln OP 11 Nov
That's right
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0 sats \ 3 replies \ @0xbitcoiner 11 Nov
I must not be understanding something! When the visitor goes there, no one is there because everyone has left.
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0 sats \ 2 replies \ @Scroogey 11 Nov
They do NOT know about the 100:100 ratio (only we do). Furthermore, they do not know that the only eye colors present are blue and brown. Each one must consider the possibility that he/she has an arbitrary color (e.g. green).
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0 sats \ 1 reply \ @0xbitcoiner 11 Nov
ah! ok. If that's the case, I can only see one possibility: using water as a mirror! Ahhah
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0 sats \ 0 replies \ @senf 11 Nov
Think about the case of just one person having blue eyes. What would they know and do?
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