ETH is not only the fastest transaction speed that it also had the highest security level in the present time. If BTC unable to breakthroughs in the future, I think that ETH will occupy the top 1 of BTC
I think that's impossible, Bitcoin will stay in position 1, because Bitcoin is the parent of all altcoin. ETH is just an alternative to getting Bitcoin. Fast or slow transactions, it depends on the cost of bitcoins that prioritize users or senders
pay the largest Bitcoin (BTC) miner cost, so with
The biggest cost would be to quickly build a bitcoin miner network, with the smallest cost
which is slowly confirmed bitcoin network.