Bitcoin is proving to be extremely strong, practically "immune to death". If you look at Bitcoin Obituaries, people among the most influential and powerful in the world (let JPMorgan CEO be one example) have been unsuccessfully trying to bring it down. Even Hearn tried to destroy it and, despite all the incredibly negative promotion worldwide, Bitcoin's price went down a little only to (slowly) get back. If not even one of its creators was able to kill it, who will?
Another altcoin might slow it down but not actually kill it. Someday one of the altcoins will emerge as a better payment option and take away the throne from bitcoin as the top crypto out there.
i see no reason for that to happen, as long as they do not offer anything worth it, and no right now there is not a single altcoin that offer something that bitcoin lack or that bitcoin can not have in the future
I agree here, ATM no other alt coin has the infrastructure that Bitcoin has nor the merchants, hashing power, people, development, or funding...
I did NOT invest in ETH but see them as the only ones who eventualy might be able to compete with Bitcoin ONE day. Although they have a long way to go.