Bill Gates has a team of people in a ‘family office’ managing his money the reality he probably had a windfall last year and needed to do something with it. Usually when you have a windfall you buy treasuries because they can be liquidated easily when new opportunities are available. Buying treasuries is a bad idea at the moment, they have negative yields when you factor in inflation. He probably had no good stock opportunities and there may have been more opportunities in farm land. Would he have used a loan… maybe I don’t know the details but also maybe not his investment funds don’t need the loans. My point is he has a good team managing his wealth and it will most certainly grow as a result and this team will also find good opportunities for him to grow his wealth. This should not be surprising.