You lost it all because you didn't had the balls to hold I guess. You guys seem not to learn. You should learn from Warren Buffet. When he bought the Washington Post stocks he lost a lot of money, then 10 years later the 10K invested turned into 380K, except in 10 years these 7K dolllars will be 700K
To turn 7k into 700k, bitcoin price needs to go up 100 folds. I am not sure it can do this kind of wonder again and go up to 50k per coin.
Stay away from [bitcoin]. It's a mirage, basically.
Warren Buffet belongs to the old money crowd. Can't expect him to understand crypto currency and cryptography.