[akhosla]

Recommend you check out Proof-of-Stake. It solves the problem of power wastage. ;)

[rocqua]

That requires solving the 'nothing at stake' problem. I recall reading some proposed solutions, but they were complicated.

If anything is great about proof-of-work, it's how simple it is.

[Klathmon]

But many people (including those who are actively developing it) aren't even sure if Proof-of-Stake is even fully possible.

As far as I know there are still some pretty big holes in PoS that still need to be filled in.