- take out a loan (or borrow) money - slowly buy bitcoins on exchanges over several years - destroy the wallet with 1B publicly ( I assume here it is possible

- take out a loan (or borrow) money - slowly buy bitcoins on exchanges over several years - destroy the wallet with 1B publicly ( I assume here it is possible. I heard of possibility to transfer to reserved/impossible wallets ) - wait a bit for the exchange rate to go up - sell your previously bought bitcoins - pay back the loan Edit: OK, maybe $1B is too small for this scheme to work. But if the wallet would contain say 50% of all bitcoins this would be a possibility.