Kyle’s Kindle Notes & Highlights

Brief Answers to the Big Questions, by Stephen Hawking

if general relativity is correct and energy density is positive, time travel is not possible.

See Kyle’s notes & highlights

Brief Answers to the Big Questions

Brief Answers to the Big Questions

by Stephen Hawking

Rate this book

Clear rating

1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars