The projects that are in the market for a long time are mostly dealing with solid products, which are designed to solve different problems. Projects that quickly create hype and start a new trend in the market, resulting in a lot of similar projects coming up and at some point that trend ends. There is no calculation of how many trends are coming in these few days. But at the end of the day, the hype of those projects could not hold and now it is being dumped. So you should focus more on solid projects, short term hype may give you quick profit but in the end those projects will fail to hold their hype.