Where did you get this idea of a "thinking signature" from? What you're saying is just simply not possible. Assuming people are completely deterministic at the nanoscale, you cannot propagate forward even half a second without accounting for the stimulus from the entire world. You also cannot simulate people's minds without knowledge of basically what their every molecule are doing. Machine learning won't help you here very much.

EDIT: Looking at your profile after responding to another comment by you, it looks like you believe there exist some sort of vibration that seem to be different from the physics concept? What is the vibration that you understand?