Yield Curve Slope vs Mid Cycle Slope

Could anyone explain how “10 yr-2yr is 15 bps below the mid-cycle slope of 65 bps” signifies that we are in late expansion? Also what is mid-cycle slope?

Where did you see this?

In one of the whatsapp group.

Have you asked them for an explanation?

Author removed the question before anyone can respond? I just saw these lines.

I’d ignore it.

Concentrate on the curriculum.

Yeah. Makes sense.