Probably because the world does not stand still. And many entrepreneurs and just ordinary people are now well aware - you need to have time to buy in time, so that later you can sell profitably. This market is still young, it is unsettled, it is only developing, therefore it is too early to say that someone will be able to understand it unambiguously. But in any case, you should rely on the notion that there are platforms and applications that will make your trading life easier. And one of them https://play.google.com/store/apps/details?id=com.cindicator.stoic_android - Stoic, which can be downloaded now.