are Polkadot, Chainlink, Cardano... competitors of both Bitcoin and Ethereum, or just of Ethereum?
I ask because these coins are often said to have the same, or more, features than Ethereum, but with better technology, while Bitcoin is already accepted to have less features than even Ethereum. of course, this doesnt make them friends of Bitcoin, but, at least to my eyes, does make Ethereum their main rival.
those points are arguable, and many will say even totally wrong. I am not asking about whether they are true or not, I just mention them as point of departure, because I think they represent a very widely held view. if you dont agree with that, though, please say so. discussing about what we speculate most people think may also prove useful.
thanks.