Please provide an evidentiary basis for human consciousness.

Please refrain from reductio ad absurdum.

The building blocks of 3D graphics, cryptographic encryption, protein folding algorithms, and much more are not trivial, rather they are critical elements of our current understanding of how to make something 'compute' like a brain does.

If you think a human synapse is a trivial part of human thought and consciousness I'd say you are the absurd one. (Not saying you think or would say this, just flipping the scenario to beg the question: what do you think consciousness is exactly?)

And not that I am saying LLMs are conscious, nor currently capable of consciousness. I just don't think it's trivial, absurd, or arbitrary to suggest or discuss it.