Well yeah, it's not exactly a Ponzi scheme per se, but it is a lot like oil and other natural resources, but they're a resource and not a currency. It is quite a lot like a natural occurring Ponzi scheme though. I don't anyone has actually explained this yet, the core point I'm getting at is if the supply is inherently built to continually diminish, then wouldn't the price continually increase, and that in itself is can't sustain a stable currency and the people who invested early will never be at risk because their asset will be guaranteed to continually appreciate in value