less then ten years mate for sure much less, the crypto price fall because the selling rate some time grow because people convert crypto to csh but there already come startups that will drastically lower the selling rate which will surge the price of low supply coins and also huge supply coins but the effect on huge supply almost will be nothing compare to low supply projects.
in the moment selling rate fall hard and people buy directly with crypto/bitcoin the price will surge without even demand grew,, when demand will enter the entire population we will moon to neptun...