"WHAT IS THE MATTER WITH YOU??? HOW IN THE NAME OF CHRIST CAN YOU BUY $40 Billion of bitcoins at $900 each??? Hahahhaaaaa you are hilarious. I don't know if you are just trolling or you really have no idea that there are buy and sell orders for limited amounts of bitcoins on the exchanges. I would guess trolling..."

:-) I did not say that they would buy 40 bln in one time.
They could buy slow in low volumes and then dump it all at once.
Again and again.
Each time causing a small crash.
This is how you could manipulate a price in all kind of markets.