I can speak to what it's like with autism brain. In conversations people often say things that I have unusual associations about. My mind will start spiraling

I can speak to what it's like with autism brain. In conversations people often say things that I have unusual associations about. My mind will start spiraling about the unusual association and I will begin an internal narrative about the new, unrelated topic without verbalizing any of it. I will continue with the original conversation with the convo partner. Then, out of the blue, I will verbalize something about the second topic and the convo partner has no idea what I'm talking about. The topics can be as unrelated as databases and the mating habits of penguins. I have forgotten that the convo partner did not take the journey into the second narrative with me. Countdown to database of mating habits of penguins comment.