But why would it do that? I believe that in my 6+ years of investing and looking at both markets closely I can safely say that these two cryptocurrencies and their communities are both hand-in-hand keeping the entire cryptocurrency industry alive, cause big as it may seem the crypto world is pretty infantile compared to tried and tested investment tactics, and they badly need bitcoin and ethereum's support at this stage to keep the whole thing afloat and make sure that no one's caving in. Ethereum undermines bitcoin or the other way around? We're going to see a massive collapse in price, value, and purpose for cryptocurrency as a whole, may even be the cause of its death for all I know.