Also, do people just ignore your input, or do they feel they alrrady understood what you are trying to say? When I interrupt people, it is usually because I think I alrrady know what they want to say.
Maybe people in SV are just faster than average? Like the joke in Microserfs where the nerds watched video with subtitles in fast forward.
For ecample I also watch courses on Coursera on double speed, normal speed feels agoizing to me.
So perhaps talking double speed could also help?
I think it is also rude to expect people to listen for too long.