So lets escape this! Lets say the process ends! Now B has fully determined itself such that C is determined and now A is determined as well.

Is A now deterministic? No, A isn't anything anymore.

Nothing is happening.

A isn't now deterministic; A was determined and now our physics is stopped. Where is the determinism at? Not within A, because clearly during A B wasn't deterministic because of self-reference to C. Not afterward either, because now it isn't doing anything.