It seems like I have played pi before, but I don't know how to find it now.

Speaking of pi, I played it for the first few months, then I mined for 40 days in between, and after a few months I would go back to play around. However, there are indeed a lot of people playing this, and the number of openings shouldn't be too high. About 95% of the people are just like me; whether they open or break off those cx people, but there are probably some who have struck it rich. The opening shouldn't be too high, it's just for new users anyway, which is good for the coin circle. Be cautious when taking over; who knows when this will suddenly pass. We should see when the quantity is no longer increased before we can play with it again.