Drivechains are a good starting point for how we can grow bitcoin and ossify it. IMHO the game theory starts in a stable state, but quickly moves to an unstable state as the market cap moves to 10,000x the daily fees. So drive chains should be marked as experimental, and that users could lose their deposits. In practice, any that take off, and get exchange listed, the peg will be under huge pressure from day one, and will eventually go the way of Luna/Terra. Nobody wants a stable coin that's worth 90 cents on the dollar.

What do drive chains do that space chains can't do.