Well, if it were quick and not a particularly large amount, so that you can repay it within a year, then it removes the worst of the deflation aspect.

But then... why not just pay cash? Why always the loans? I thought a main point of Bitcoin is that it encourages saving, so that we don't have to take out loans for every pittance?

Can it be that we just have Loan Brain, as a society, and we literally are mentally incapable of thinking of a world in which we just pay for stuff because most of us have never paid for anything highly-priced outright and it seems like a weird idea?