Ethereum has been use widely for ICO purchase which have given this coin a high recognition. And also ripple has been on test for her technology in financial institutions to use since it can process trasactions than bitcoin. Will these two coins replace bitcoin and become number 1 on the coinmarketcap
bitcoin already exist about 10 years now,,
and perhaps without bitcoin, altcoins will not exist wich mean ethereum and ripple will not born my friend
so, i can't believe if ethereum or ripple will replace bitcoin as the number 1 of crypto at coinmarketcap