Recently, I was thinking about why men¹ talk over women, and I think it's less a gender thing, and more of a...

"men¹ are taught to talk over anyone who doesn't talk more assertively than they do"

In my roles as an executive at several tech companies, the one negative feedback I got on almost every review was that I wasn't assertive enough in meetings with other execs. One male CEO even told me "you need to interrupt more, talk more—even if you don't know the answer. Otherwise they'll think you don't have anything to say". Which, honestly, churned my stomach.

The feedback was clear, if I wanted to succeed I needed to talk like the guys¹ in the boardroom—the same ones¹ who'd interrupt to ask a question I was already in the middle of explaining, who'd repeat a suggestion I'd just made—only louder, who'd make some cute comment that would derail my presentation, who'd explain my position back to me as though they'd just thought of it.

I needed to do that...and I needed to do it louder.

Otherwise men¹ weren't going to listen to me.

¹ not all men

@alice I'm also reflecting on a SF short story that featured an executive receiving a "hate-brace" before a major business meeting, and the executive's 'throwback' daughter Ployploy (who dies close to the end of the story). In the story, success in business meetings basically comes from out-screaming your rivals in psychotic rage.
But I'm damned if I remember the title or who it was by (I want to say Asimov, but I'm drawing a blank, and web search is returning only Kpop tropes). The story is told mostly from the viewpoint of the, uh, 'therapist' administering the hate-brace, who observes that being fired at the end of the session is the highest compliment his profession can receive and almost ensures being hired again next time.