It's based on very basic TA.
By historical trades, I mean trades that happened previous in time. Before "now".
And you know basic TA wouldn't work because it would be exploited against the "Basic TA"-people.
My point is: Look forward, not backward. I know shorting bears have made good money the last year. But you can't predict this curve by looking at old data. Look at the premises, how revolutionary bitcoin really is. Too sad if you bet all the money you made in a year on a leveraged short, and loose it in a flash when "the guys" go for it, he he. Ok, you can maybe play the bear game a little longer, but promise me that you put some of your earnings on the side (in bitcoin).