I think there are several things that cannot be played in the circle,

1. Urgent money cannot be played

2. Principal of loans cannot be played

3. Impulsive people cannot be played

4. Borrowing someone else's money and waiting to repay after making a profit cannot be played

5. Impatient people cannot be played

6. People who want to cut losses as soon as they see floating losses cannot be played

7. People who do not run away from greed when overall profits are there cannot be played $BTC