i totally agree, but in all honesty i think something further superior to PoS will surpass PoS as the alternative algo that will challenge PoW.
its simple evolution.
I don't think it's likely, since PoS has reached nearly perfect efficiency in terms of resources. The further variations are subsets of PoS, such as DPoS, TaPoS, they can improve upon PoS, but the core ideas of PoS is unlikely to change.
That sounds like another subset of PoS, but with an added layer of determining which stakes are more important. I think that's still PoS at the core.
This is another advantage of PoS, the specific implementation is very flexible, able to fit different needs and easily be improved upon.
no its entirely written from scratch. according to the devs it wouldnt be possible for PoI to be migrated into existing pos algos due to the difference in architecture or something.
The code is written from scratch, sure. But PoS is not a piece of code, it's a concept. If you are using stakes as the proof, then it's PoS. I think it should actually be called IBPoS (Importance Based Proof of Stake) instead of PoI, the "importance" is not the proof, the stake is the proof. The "importance" part is used to determine the weighting of each stake.
its not based on stake. it uses importance as proof, thus its proof of importance. the stake an account has is only a (small) part of the calculation, hence why a merchant could have 10 or 100 nem but have a higher weighting than a hoarder with 1,000,000 nem or even 10,000,000 as far as i know at least. because of this it is easy to see that the other calculations in PoI are weighted higher than the stake of an account so it cannot be considered PoS. if the stake an account has was the biggest piece of the puzzle i would agree with you but its not.