No better alternative is going to be found for Bitcoin. Bitcoin's security depends on it being super expensive to attempt to hack. Electricity is perhaps the mo

No better alternative is going to be found for Bitcoin. Bitcoin's security depends on it being super expensive to attempt to hack. Electricity is perhaps the most in-demand good (aside from food and water) over the globe. Those other systems like PoS do not have the same irreversible commitments as the commitment to exhaust energy. No matter what you do, you aren't going to get the energy back. Bitcoin miners will force innovation in cheap renewable energy sources because without them, they will be out-competed and will not stay in business for long, because someone else will make the investments. Bitcoin mining will eventually be run on low cost, low maintenance renewable sources. Some of it already is. Real business needs end up producing results. Virtue signalling middle classes who won't put their own money where their mouth is do not.