if you are planning on buying thousands of bitcoin to retire on, you would be better of using the money to buy gold with, that's a much safer investment.
it's an insane amount of money.
it's like buying several thousand tons of gold. It's quite a large fraction of the total amount of bitcoin in circulation.
Gold may historically be a safe investment in times of financial uncertainty. However it is only a means of maintaining wealth, a store of it and not actually a vehicle. Plus other than its unique composition and limited uses (compared to other metals) it could be worth very little in the future. Precious metals have very little meaning or value to the younger generations, which I personally feel will have an impact it in the not so distant future.