He has time locked little pots of sats at each halving. I think his overall goal is to incentivise collaboration and bring people together for a common goal. Presumably in the future those time locked sats will be of a significant value and therefore encourage people to continue to secure the network with miners for a chance at a small share of the prize.

He’s also just an ultra maths nerd and thinks about the future is a wildly different way. It’s fun that he’s committed to a project that he will never see the outcome of because he believes in the best of humanity and the longevity of Bitcoin.