During a downturn it is difficult what is proposed, because if I buy some in fall is because I am in Margin Trade and most likely is leveraged and I usually do it with the currency that I see more easily fall more accurately without stopping , if so, it can be any altcoin, since when bitcoin falls in price, the altcoins also fall quickly and sustainably.

But if I choose a currency to invest in the long term and that is falling, I do not buy, because as long as the price continues to fall, so I have to wait for the storm to pass to see how much it fell and how much will continue falling or how long it will be able to resist at that level, because it may continue to fall much more, if I get details or information that will not fall any more and that will begin to lift I choose the currency closest to bitcoin, for example ETH because it is a currency that usually recovers fast when bitcoin resumes his bullish tendency.