Back when I first heard about Bitcoin and mining, i actually assumed that POW was doing something similar. I didn’t realize it was just wasted electricity. I assumed we were all hashing to crack some code, folding to solve cancer, etc.
I think ETH should of designed their old POW as such which can do actual work and imagine how much would of been solved throughout all those years of miners mining ETH.
It’s a great idea however I don’t see POW making a comeback anytime soon.
POW making on video cards may come back if Nvidia and AMD want to increase sales of their video cards. The price of the Casp coin is growing because the manufacturers of ICERIVER KAS KS3 want to profitably sell their equipment at a high price.
Not all video cards are suitable for PoUW.