He needed infinity dollars because he planned to address the biggest existential risks to life on earth: nuclear war, pandemics far more deadly than Covid, artificial intelligence that turned on mankind and wiped us out, and so on. To the list of problems Sam hoped to tackle he’d recently added the assault on American democracy, which, if successful, would make all of the other big problems far less likely to be solved. One hundred fifty billion was about what was needed to make a dent in at least one of the big problems.
