Spontaneous Inequality

A fun problem making the mathematical rounds: if you give everybody some number of dollars (say you give 45 people $45 each), and at every tick of the clock everyone with money chooses one random person $1, how will the money eventually end up distributed? You might think it’ll stay approximately equal—”approximately” only because of … More Spontaneous Inequality

Optimization Metrics

Clara and I have to take a written exam in order to transfer our driver’s licenses to Minnesota, so we’re studying the Minnesota driver’s manual. In the section on crosswalks I found this instruction: The problem is that you can’t leave an intersection both as quickly as possible AND as safely as possible. To leave … More Optimization Metrics