The characteristica universalis and the calculus racionator of Leibniz.
Thursday, February 20th, 2020
Sunday, February 22nd, 2009
An even more speculative version of The Long Bet. Given a supposition (e.g. "What will the world be like when custom satellites are as easy to design and launch as your own website is today?"), you can add to a list of positive and negative outcomes.