I don't really agree to your assumption that bitcoin never went such a dump in short time. According to this chart, there was a massive dump of 72% in 2010 and the last dump in November was also 30% in 4 days. There is nothing new in this dump. Yeah, the fall in USD must be quite high, but percentage wise it is just another dump.
This chart is amazing. Dump is the best thing that could happen to Bitcoin. We need that. We need separate the believers in a new world from those that only want another Ponzi scheme. We need that the dump closes some new coins and stupid projects. We need this blood and Red on the charts.
Great chart otkeep track of the relevant Bitcoin corrections and to keep the FUDsters away from making you panic sell, whe all we've seen is just a very healthy correction of %30, which is clockwork compared to past corrections. We are still on a very uptrend, this correction as I said, pretty much the same as the ones we've seen this year.
If you are worried about the current events, you are NEW. Everyone with a clue is buying this dip, even if it goes a bit lower, smart money is buying while you are crying, this is how it works.