This is very simple, and you answered the question already by saying that when the "market turn around". When you buy and invest in the bear market then you hodle for the bull to come and once the bull market appears then if you like to sell, you sell them and if you like to still hodling, it is your choice. And remember you bought in the bear market so you must make profit in the bull market because the bull price has surpass the bear price. And now that the bear is on going, people are busy accumulating bitcoin every day and night and they are buying for the bull to come.