>we've probably all heard the thing of harsher sentences being given in the hour before lunch

That suggests determinism though.

I mean I agree with you overall. Either humans decision making is a system so complex it appears non-deterministic, or it is deterministic. Practically speaking, we are non-deterministic.

Let's not conflate non-deterministic with inaccurate though. Non-deterministic systems can be 100% accurate. https://en.wikipedia.org/wiki/Las_Vegas_algorithm

> harsher sentences being given in the hour before lunch.

Implicit bias theory sparked a massive number of studies that suggested everything influenced you from the color of the room, to what the person said to you before entering.

It’s been really hard to replicate and the conclusions that have been drawn are contradictory.