I think that yesterday was a panic selling by some people because the china government has tried (or did) affected the bitcoin by tried to control it, but the price again went a little up.
Usually any non-market related events are overcome very quickly it is very similar to individual bump or dump, that will not sustain for long term basis. Panic selling usually happens in all market type when some group of traders are booking profit, others do get panic and will over-react. Experienced trader will not react to this kind of emotional market turn around events.