is it possible to make a proof of space that is stored entirely in RAM?
in my opinion proof of space has failed because storing in hard drives is not practical and ends the useful life of the hard drive.
If there is a way to have the voting power based on ram memory, in my opinion,
it would be fairer than proof of work.
I am thinking of storing proofs of work in RAM in such a way that they do not expire with a new block being created.
For example, hash of random bytes needs to do a partial hash collision of the previous block.
Then we fill the ram with proofs of work
If no miner has the hash needed to make the collision we gradually decrease the difficulty until one miner wins the lottery to prevent the miner from generating new pows.
RAM is much more energy efficient than cpu and does not damage as easily as hard disks.