Bitcoin currently suffers from a serious scalability issue with no solution on the horizon. Ethereum constantly gains greater acceptance and hosts an increasing number of projects on its blockchain. When will the inevitable occur? My opinion is that in about one year the marketcap of Ethereum will be greater than that of Bitcoin.
The market of the ethereum is mainly for business. Bitcoin is a means of accumulating and protecting its savings for all strata of citizens. Therefore, the ethereum will never be able to overtake bitcoin. In addition, bitcoin does not stand still and the tendency to develop. After a couple of years, all its shortcomings will be corrected