When you consider who Peter Buffett's father is (Warren Buffett, aka 2nd richest person in the world) this seems obvious. But father Buffett has said in the past that he is likely to leave the bulk of his near $45 billion fortune to a foundation in his family's name, not to his children (hence my hesitance). But considering the overall scope of Buffett's investments and current net worth, even a super modest inheritance, a fraction of that wealth could be make Peter a billionaire.