I know this post is funny, lol even myself it amuse me but since people borrow everything in life like lands, cars, crude oil, loans, gold and silvers, I know is possible for someone in this forum to borrow me one bitcoin, when the price double I will return your own back with interest. Don't laugh me, help a brother also to own bitcoin since I can not afford it, let me beg for it from cheerful givers and charity bitcoiners.
Lol. I know this is hard to do post but if wishes are horses I will love to have one.
Let's say the price of bitcoin doubles. You borrowed one bitcoin, how can you pay back two? At best, there is only one bitcoin in your wallet. With such financial and mathematical ideas of yours, it is unlikely that many people will want to lend you anything, I'm sorry.