> Sure, you can check if it's mathematically coherent, but that tells you nothing about whether it describes the physical world correctly. This is a very good

> Sure, you can check if it's mathematically coherent, but that tells you nothing about whether it describes the physical world correctly. This is a very good point I think a lot of people miss. (Including some who should know better.) Pontificating about speculative physics is all right for Aristotle but you need actual experiments to ground your results.