I think it is hard to imagine the crypto world without bitcoin and despite what people said that bitcoin may not survive, I think it is here to stay. But IF bitcoin continues to fall and it does not survive, which of the alternative cryptocurrencies do you think can take its place? Ripple? Ethereum? EOS? Will it be bigger than bitcoin?
Ripple, EOS??? Are you kidding, not even in the same planetary system lol. Ripple is pretty much for banks while EOS has very little practical application to most users. Bitcoin has infrastructure and is deeply rooted... VERY hard to see BTC going ANYWHERE for probably 100 years... okay, at least 20 years. But okay... IF...
IF BTC were to somehow perish then one of its forks could rise to take it's place. BTC-cash could do it. Ethereum is interesting but I don't see it taking the place of BTC or that is... I don't see Ethereum being used the same way BTC is used. Eth could easily overtake marketshare from BTC if ICO successes continue but that is not the same as taking the place of BTC. BTC is a utility coin by this point for point of sales and/or intermediary exchanges. Eth is too in some ways but it is more dominated by ICO and smartcontract exchange of services.