Due to the vast gain in prices over the years, moderate % swings can look bigger than past swings if you don't consider the scale.
If we look at USD-BTC on a log scale, we can see that the recent relative drop has not been bigger than previous drops. It needs to fall below about $13,500 to repeat past cycles; time will tell if that happens but I expect that a lot of bigger folk will buy in if it gets near to that level.
One thing that does stand out is how︂ flat the prices have been recently. 18 months since peak and we're not even down︃ by 80% yet. In the past, the time from peak to 80% drop was shorter.︄