Unfortunately, the miners have to consent to ditching PoW and many of the larger miners have no incentive to do that.
The problem to solve is engineering that incentive.
@Stonehedge started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
Unfortunately, the miners have to consent to ditching PoW and many of the larger miners have no incentive to do that.
The problem to solve is engineering that incentive.