What’s your favorite science fiction book? On a big sci fi kick right now↗

What’s a great biography I should read? Preference: - person needs to be on top of their game from 1880-1980s. Nothing modern - businessy type of person. Military or pop culture related is cool too - on audible - not more than 800 pages - haven’t read before↗

1/ "You can name people who are richer than Rich Barton, but you can’t name very many people who have his track record. You will find very few people in this country who have as many times created something from nothing.” Nick Hanauer. A chapter on Barton: …↗