It will not happen. Why Bitcoin price did not go under $170 in 2015 when was last bottom?  Because there was a bottom. Price dont go under bottom unless something drastically change. So far from 2015 had not changed that much but what changed it changed on better and bottom now is way higher then $170. In a year time we will be able to tell with 100% certain what was current Bitcoin bottom. Same as now we can say that bitcoin bottom is 100% over $170.