I want to create an alternative special-purpose blockchain. It would use a proof-of-work function that is different than the one in Bitcoin.
There are already a lot of such blockchains. For what else to create, in fact, now there are so many blockchains that the market will soon be oversaturated, I think that many will simply disappear with time!
The one's with a practical usecase are here to stay though. Some redundancy will disappear eventually