1) I specifically didn't want to focus on technical limitations and implementation details. Yes, scalability is very bad, but my main point was that even if it

1) I specifically didn't want to focus on technical limitations and implementation details. Yes, scalability is very bad, but my main point was that even if it were fixed, Bitcoin-like cryptocurrencies still can't be viable currency. 2) Why wouldn't debt work? Wouldn't loans come from the pool of currency held by the creditor?