Yes, this shows that you can say "it's complicated" more than once without offering any sort of counter explanation about where that flex could possibly be going or how it is released, even though we know it is produced via chain tension and chain tension never drops to zero.

It's complicated.
It's complicated.
It's complicated.
It's complicated.
It's complicated.
It's complicated.
It's complicated.


It's not, unless you simply don't have the ability to picture how any of this works, including some sort of imaginary 'complication' you can't describe.