But why would those pick blue? They have the same incentive to just pick red.
I wonder if red choosers really don’t understand that they are choosing to live in a world where half of all people, the more selfless half, are dead. It’s like living through a nuclear war except all of the nice people are gone, not just a random sample
The end of the article mentions it. Some people are not purely rational decision makers, some people are altruists who know others are not purely rational, etc.
By choosing red you will kill some people.
Same as with the original dilemma. Most people are not sociopaths and will choose to cooperate with empathy for everyone else. That's just how species survive and adapt. (1) Alternatively, some people believe that sustained cooperation is in itself a sustained equilibrium. (2)
Most of the world is not as individualistic as Silicon Valley engineers believe in their own ivory towers after decades of reading Ayn Rand.
(1) https://en.wikipedia.org/wiki/Mutual_Aid:_A_Factor_of_Evolut...
(2) https://www.optimallyirrational.com/p/the-true-story-of-the-...
Physician assisted suicide is legal in some places.
There are some people very upset that physician assisted suicide is legal anywhere.
People may pick blue wishing to die. People advocating others to pick blue are either would-be serial killers or would outlaw physician assisted suicide given the chance.