Whether ETH can fall to the price of $ 70 for now or bounce up, seen when btc rises eth does not rise but when the btc drops eth it decreases too, whether it is possible or not
I think your $70 is way too much. Even if you're talking about that amount of decrease, it's still way too much. If that is even possible, that rate won't last for an hour because ppl will get crazy buying back that much eth and causing the prices to go up higher
All your predictions are way too wrong because OP is near to his expctations since ethereum is in continuous downfall and almost drop below 80$ things that almost right on what Op says.
Actually i am expecting atleast $50 for ethereum to fall this 2018