Chia pre-mined 6 years worth of block rewards. Proof-of-space may be the closest thing we have to a viable proof-of-work replacement but this instantiation of it feels like a get rich quick scheme for its founders. Edit: My calculation was based on the initial reward schedule of 64 units per block, but when you take into account the fact that it ramps down to 4 units per block shortly thereafter, it's actually a prem…
What is wrong with proof of stake?
Other than that - absolutely nothing