Is Tai Chi turning a figure-eight turn or a folding turn?

Tai Chi turns and folds.

The folding transition is actually the connection problem between Tai Chi movements. Not only Chen-style Tai Chi has folding transitions, but all other schools of Tai Chi require folding transitions.

Correct turns in Tai Chi: Turn the body to the right: Never turn the body directly to the right. Turning directly to the right will cause the waist to not exert any force. You must first loosen the right hip and close the left hip, that is, the right hip sinks and does not move, then close the left hip to the right, sink the body, and turn to the right. You will feel very light and your overall strength will come out! My waist felt like it was not turning, so it turned around naturally! On the contrary, the same is true for turning left.