We Know So Much. And So Little

This post is by Valet from Feld Thoughts

On my run to Boulder on Saturday, I listened to The God Equation: The Quest for a Theory of Everything by theoretical physicist Michio Kaku. My run was about four hours long, which was roughly the time it took to listen to this spectacular book. The quick summary from Wikipedia follows:

Kaku explores the history of unification theories of Physics starting with Newton’s law of universal gravitation which unified our experience of gravity on Earth and the motions of the celestial bodies to Einstein’s general relativity and quantum mechanics and the Standard Model. Kaku dubs the final Grand Unified Theory of relativity and quantum gravity The God Equation with an 11-dimensional String theory as the only self-consistent theory that seems to fit the bill.

I knew a bunch of the history Kaku covered, but he did it in a clear and beautiful way that built up to a bunch of contemporary theory that I couldn’t have explained prior to listening to the book. M-theory is still a complete mystery to me, but at least I understand the linkage to Trisolarans and their sophons a little better.

This morning, I had an email from Tom Keller pointing at a recent APOD from 4/16/21. It was additive to my experience running on 4/17 and listening to Kaku’s book.

Explanation: Light rays from accretion disks around a pair of orbiting supermassive black holes make their way through the warped space-time produced by extreme gravity in this stunning computer visualization. The simulated accretion (Read more...)