So when is someone going to incorporate this in a future dystopian sci Fi?...

"The Turing test never works because the cyons speak, think and act just like us... But the hands, son... The hands are always... off. No one knows why, but it's from the earliest days, even before they learned how to manufacture the cyons in our image. Those damn generative AIs were never able to get them right, even when they were just pictures and they probably never will. No one knows why, but we don't need to know the why. It's still the only way we can tell them apart, son. Check the hands. The hands."