If 20% a day and consistently then bitcoin will probably dead in span of 5 days, this might happen in the future but btc has a long way to go and as of now its not possible.

In the recent dip of bitcoin it takes just days and bounce back again with even higher amount so those who had the chance to buy at that time probably earn now. If btc fall i wont sell my coins, instead ill buy more to contribute for the price increase of btc.