The biggest crash in the history of BTC has been occurred from 2 days ago till now. It' all over now. If you don't buy after reading this post you will cry soon.
It doesn't justify that, you are never going to know if the price is going to go up or not, so for me, it is a 50% - 50% , i am still buying, but it doesn't mean that i will be still be buying at more than $20k for each bitcoin.
The dump is good for bitcoin, its a just a healthy correction and bitcoin are starting to pump now. Some people say its a bull trap and another dump might occur so better to study the chart and you will see the pattern. Bitcoin needs to break above $14k so it can continue to pump now, before you buy make sure you make your own analysis. Well if the goal is for long term, buy bitcoin for whatever price right now.