$PI Four Tells us the consequences of trading cryptocurrencies with the harshest reality. Knowing when to retreat is key; creating practical use cases is the fundamental condition for the entire network to collectively move toward prosperity. Before getting involved in the project, we were already battered and had exited as leeks, but because of it, we came back, so we cannot take the old path again. Trading is not a game for ordinary people; please cherish this rare final opportunity.