The last ATH and the crash that followed had many other, non-chart signs - the fees were high due to a huge network activity, as people were moving their coins in and out of exchanges, Bitcoin reached ATH on Google trends, the media all over the world were talking about Bitcoin, even on national television. There's nothing like that right now, so it's not the top of another bubble yet. Maybe it is a fake rally (very low chance), but most likely the crash from $14,000 is just a correction on a road to much higher prices.