The answer is to start an alternate cryptocurrency in which the quantity of coins generated follow a
sigmoid function instead of a
logarithmic function. That way, more coins are generated as it catches on and more people start to mine. This also means that prices will be a little more consistent over time - no 10,000 coin pizzas - before it finally starts to deflate and become a store of value.
The problem is placing the bend of the S.
I suppose you could do some trick involving the ratio of difficulty to coins minted... hmm...