In the short term and if the miner sells all of his BTC yes. But in the medium term, the difficulty will increase, the same amount of coins as always will be mi

In the short term and if the miner sells all of his BTC yes. But in the medium term, the difficulty will increase, the same amount of coins as always will be mined and the price should remain roughly constant. ( And in addition, if you want to move the market to 25.50 $/BTC, you need to sell about 3k BTC [1] at the moment.) So the market would not move much, even if all of these bitcoins are dumped in an instant. [1]http://bitcoincharts.com/markets/mtgoxUSD_depth.html http://bitcoincharts.com/markets/mtgoxUSD_depth.html