No sweat, my friend. Pure happenstance, you got into a discussion of brain surgery with a brain surgeon. I'm an EE (among other credentials).
As an aside, I'm an old one too (58). Old enough to be permanently amazed by how cool BLDC motors are, something that couldn't exist before we had the chip fab technology to make controllers small and fast enough to make them work.
Before that, people who specialized in DC motors were experts in BRUSHED motors. When I was a kid, I had a period of slot-car fandom, and remember well the technical details and mods to these motors.
My my my how things have changed

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