If someone who is 43 maybe 44 years old in the u.s. has like at most 15 million usd worth of bitcoin, should they continue to work until theyre at least 62 years of age or can they just retire much earlier assuming they were either receiving annual dividends which were at least 300k usd per year or should they work until at least 50 years old to throw the towel?  How can it be determined when they should just stop working all together then?  Retire now or until theyre 50/62 years of age to enjoy their $$$?