How would you fully undo all gains from solar by devising a contrived way to waste energy. Well just tell people it's virtual money lol
Bitcoin ASICs.
People overlook the fact that it's still much more environmentally friendly than gold mining. Plus once PoS is proven, energy consumption won't be an issue
Back in my day kids just used their extra compute power for SETI or something. But you can't gamble all your money and go broke on SETI
At least it was for a good cause