altcoin bag-holders often dream about this and hope their coin replaces bitcoin so they can dump their bags and get out but this will never happen since all of these altcoins are bad.
I think it is very likely to occur in the future, if there is a better technology than bitcoin.
yeah this can happen if in the future there is a new technology that replaces bitcoin and bitcoin can't keep up. but that is in the far future.
they expect this kind of answer from you, you realize your usrename is?
bitcoin will one day be replaced and i'm pretty sure of that. why are the devs creating more and more innovative coins is because they are trying to find a better technology than bitcoin. btc is just lucky that it grow because there was nothing else back then.