It will never. Best option is just invest in Ethereum which has Proof of Stake (not energy-intensive) coming next year. The changeover to it being the top coin is inevitable. It only needs to double its market cap right now to do so, which isn’t that difficult in something as wild as crypto. And I say that without bias and I’m about 80/20 BTC/ETH right now. I think the coming months may be the last hurrah for BTC. There’s no need to use that much energy and it will only get more important with time. I have lost an incredible amount of money backing the wrong horse the past year or two and being in Bitcoin as Ethereum has eaten its lunch.

BTC maximalists will file in below me with bogus attestations that proof of stake is bad and none of it will be correct or factual. Proof of stake actually increases decentralization and eliminates the fact that now to mine btc you need to be near a very cheap electricity source and have ties that can get you the fastest asic mining machines as soon as they come out.

Source: Myself, a former crypto miner.