@punishmenthurts @hauchvonstaub @sundogplanets I think the tone and intent behind the "explanation" is what constitutes mansplaining. In other words there is some degree of sexism involved.
As a fellow autist, I have to wonder if another fellow autist speaking about one of their passions in insane detail (all too common) is confused for mansplaining.
While I have certainly talked about one of my passions (synthesizers) in such detail to others no one has accused me of it. Though, for some I can definitely see this happening.