Nothing alts have chances against bitcoin because bitcoin is the main cryptocurrency that buy anything alts. And they used bitcoin everytime they want to buy altcoin or they exchanged altcoin to bitcoin so nothing reasons.
I think it is too excessive when altcoin has the possibility to shift the bitcoin from cryptocurrency number 1? Because I think bitcoin is too superior. And will be very difficult to replace
Well i agree with you guys about position and strength of Bitcoin, and i hope that there will be nothing that can shift position and current situation of bitcoin to worst. But unfortunately there are things that can hurt bitcoin a lot, like this problem with old way of mining, and old miners. If that continue, maybe there is a chance for some other altcoin to rise and become stronger than bitcoin, but that is long way. Or maybe bitcoin can become so slow to transfer so that people start using some altcoin.