Explanation of why Bitcoin price is falling.

[helipotte]

If mining becomes unprofitable I will indeed turn some of my equipment off.  However, If everyone does this and the difficulty drops, I can just turn it back on! 

I think a lot of persons would do this also.  I believe we are reaching the point where the "arms race" is coming to an end.  The risk to develop/design/plan/manufacture

new hardware is just not worth the return.  Most of the big money in mining hardware has already been made.  Maybe this downtrend is the hardware makers cashing out

some of their coins.