Bitcoin is the oldest and most valuable cryptocurrency, but a crop of nimble competitors, including Ethereum and Bitcoin Cash, could lure investors away.
Yes it may well be. Ethereum may well replace Bitcoin in its leadership with cryptocurrency. Almost everything depends on Bitcoin itself, how much it will be improved and will be competitive among other cryptocurrencies. If this does not happen and it will continue to have a throughput of seven transactions per second, it is unlikely that it will last a long time among the leaders.