Looking at the top 10 coins, 5 out of 10 are not mineable.
New 3rd generation coins, like Cardano, is showing a trend.
Do you believe this is going to kill mining like we know it?
This is a honest question.
More like 4 out of the top 10 are not mineable. All of the top 3 (BTC, ETH, BCH) you can mine. Ethereum was supposed to go PoS a year ago, so given the extent of the schedule slip, we could still be mining it in another year.