When random people give money to random other people (2017)
A post on Decision Science about a problem of Uri Wilensky‘s has been making the rounds: Imagine a room full of 100 people with 100 dollars each. With every tick of the clock, every person with money gives a dollar to one randomly chosen other person. After some time progresses, how will the money be distributed? People often expect the distribution to be close to uniform. But this isn’t right; the simulations in the post show clearly that inequality of wealth rapidly appears and then persists