There was a moment in time, where the momentum was so great that there could be no wrong in buying if you have the nerves of steel to do so.
I bought high, and sold higher, then GDAX crashed when it dropped to 8700. I had an order in at that point and managed to snag a small amount, but none the less. What @cryptotash said is spot on. When there is bloodshed, BUY. Even if it's your own blood!