About this bottom in Jan 2020 I think it is way to late. Bottom will happen way faster then this. But the start of a bull run is total possible to start in beginning of 2020. Not sure if we will see a $10000 BTC before we reach bottom. However we look at it, it seems that most agree that now and next year is the best time of the rest of your life to buy Bitcoin. With exception of infofront chart that screams NOW!
$4600 would prove wrong the theory that Bitcoin cannot go below $5500-ish, which is the guesstimated cost of mining one bitcoin that I've heard lately.
There is nothing like estimated cost of mining. Cost of electricity is more then 10 times higher in South Korea then in Venezuela. That is x10 factor. Also when price decline people stop mining and with that difficulty decrease and that means that those miners that still mine get more Bitcoins for same hashpower.
This chart is simply amazing
