There are absolutely other solutions. The problem is they don’t allow existing participants to extract as much money out of newcomers as PoW, so the artificial hype being generated around alternatives is much lower.
Tell me one solution that would make blockchain technology obsolete. I would bet there is none even close because other solutions will require trust to some degree or have rather big security concerns but I am always open to learn new things.
If we are talking about blockchain tech PoS is a possible (not perfect) solution to replace PoW but this is even more hyped then PoW in my opinion.
If we are talking about blockchain tech PoS is a possible (not perfect) solution to replace PoW but this is even more hyped then PoW in my opinion.