Is Inequality Inevitable?

This page shows a model mentioned in Is Inequality Inevitable?. Quote:

If you simulate this economy, a variant of the yard sale model, you will get a remarkable result: after a large number of transactions, one agent ends up as an “oligarch” holding practically all the wealth of the economy, and the other 999 end up with virtually nothing. It does not matter how much wealth people started with. It does not matter that all the coin flips were absolutely fair.

Try to click "Run" a couple of times to observe wealth to concerntrate to a few people. You can find the source repo of the page here.