I think they definitely have a chance, but sharding is the best idea.
Unfortunately Bitcoin with Proof of Work will be around for a very long time as mining will be extremely lucrative for 100 years. Wasting more and more electricity for a legacy system to do store of value.
Unfortunately Bitcoin with Proof of Work will be around for a very long time as mining will be extremely lucrative for 100 years. Wasting more and more electricity for a legacy system to do store of value.