if that will make me a multi billionaire LOL
I understand that the scenario of selling "all" BTC is a strange set up - but your "multi-billionaire" finishing of the sentence comes off as completely fantastical.
By the way, if you are referring to a condition that is multi-billionaire-ish, then you must already be a bitcoin millionnaire, no? For some reason I have my doubt that you have more than 20 coins, currently, and you are conceiving of a kind of multi-billionnaire status for yourself...
Something is missing from this speculation, no? At least, grandma does not charge rent for hanging out in the basement, right?
hhahahaahhaha