Btc will and must see $6400 mark and it will take support as there are cross double support, how ever if this support breaks downwards, it will go down to $4950 and fast, this is a stable support it will kindly go up from there but in bad case scenarios there are supports at $3850 and $1800 but i do not believe it will go down to that. I have kept the chart simple as possible, there are other scenarios in it but this crisis we should look at main point.