When all is said and done, Bill Gates will go down as the person who saved more human lives in a systematic and deliberate way than any other human in history. We need people like him. We also need people like Jeff Bezos, who seems to naturally operate on a super long-term thinking mental model. I've said it before on here: Thousands of years from now there will be hundreds of billions, if not trillions, of people populating multiple star systems in this galaxy. Their existence will be due to the efforts of people like Bezos and Musk, and the steps they are taking today to address space travel and AI.