Why would you make that replacement for sentient_chatbot.c anymore than you would for sentient_chess_master.c? This is what I'm getting at again. The achievement feels so magical because it's something that has never been done. But now let's imagine ourselves with it in the rearview. You can now download, compile, tweak, and play with a neat chatbot.

When you can actually play with it, you'll get to see the magic rapidly fade. Various (though increasingly rare) normal inputs will produce absurd outputs. The majority of adversarial inputs will result in completely inappropriate responses, and so on. And then of course there will be a period of time where we continue to try to refine the chatbot and work out the adversarial attacks and so on. The notion of providing any sort of distinguishment (beyond achieving a world first, a la Deep Blue) will quickly become a nonstarter.

Presupposing that I'm a materialist, I would not hesitate to replace any program with any living being. Some humans seem magical, some don't. I treat them all as living persons.

Magic is irrelevant here. If I could understand a human's inner workings, tweak and rebuild them, would that make the human no longer a sentient being?

Not to mention that humans produce absurd outputs in some circumstances (drugs), and adversarial inputs work on humans, too: https://www.insideedition.com/15350-street-artist-painted-a-...

Or maybe we're agreeing that you can no more prove that AI is sentient than that a human is, and I just misunderstand what you wrote.