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 with this. Bitcoin has gone thru alot of ups and downs in the market. For nine years it stays strong and continuosly gives benifit it its users. No doubt about this being number one. Alternative coins will not surpass the bitcoin this is for sure. And for the bitcoin 's journey, it improvea accordingly to what users wanted that is why more people are loving it.