In a deflation based economy as invisioned by crypto currency enthusiasts, there is no incentive to lend your money to anybody. Neither a private person nor ban

In a deflation based economy as invisioned by crypto currency enthusiasts, there is no incentive to lend your money to anybody. Neither a private person nor banks would have strong incentives to do that, because you have a guaranteed increase of value if you just sit on your money. No investments would take place because of that.