If Bitcoin is like gold, then there's really not much money going into it, into how to make better bit-coin, how to make better gold. All the money just goes i

If Bitcoin is like gold, then there's really not much money going into it, into how to make better bit-coin, how to make better gold. All the money just goes into buying the bit-gold itself, or perhaps buying more mining equipment. But Bitcoin is not a replenishable resource so mining it will have diminishing returns, and like with every mining industry the nature is at risk.