becoming a billionaire most likely changes your perspective a lot. and he became billionaire 7 years ago. that's plenty of time to think of how to preserve bitc

becoming a billionaire most likely changes your perspective a lot. and he became billionaire 7 years ago. that's plenty of time to think of how to preserve bitcoins such that they aren't lost when one passes away. and since you say he was technical - well there are tehnical solutions to do that, multisigs, sharded keys, etc.