Bitcoin is going 9yrs old, so far no alts surpasses Bitcoin. For 9yrs it remains the king. While Bitcoin is going down, no alts remains strong. All alts are crashing too. This is the best indication that Bitcoin has no replacement.
I agree,bitcoin is bitcoin, it is a significant coin,theres no altcoin could ever be replaced with it, all alts depends on btc so therefore,i can say that bitcoin is always be on top and remains to be the king in cryptocurrency. ....