don't know how many years it will take for ethereum to overtake bitcoin, but it'll happen for sure
Maybe what we can observe at this time is only a solution to the problem that ETH is facing, because if ETH wants to overtake Bitcoin, the first step is to overcome the cost problem so that investors who decide to stop using ETH can return to taking positions in it, if the problem has been resolved, ETH will growing rapidly and at least narrowing the gap from Bitcoin.