«You keep interrupting me» and «you never let anyone in» are often said about the same conversation, by the two people in it. Both can be describing what actually happened.
Overlap is not the same as interruption
Deborah Tannen's work on conversational style introduced the term cooperative overlap: talking at the same time as a sign of enthusiasm and involvement, common in some families and regions and completely normal within them.
The trouble appears between styles. A person for whom overlap means «I'm with you» sounds, to a person for whom it means «be quiet», exactly like someone taking the floor. Neither is being rude; they are running different rules and both feel wronged.
What actually makes it a takeover
The useful test is not simultaneity but what happens next. If you talk over someone and then hand the topic back — finish their thought, ask them to go on — you overlapped. If the topic is now yours and they never return to what they were saying, you took the floor.
That distinction can be checked afterwards without argument. Look at who finished the sentence that was started. In a conversation full of genuine overlap, most started sentences still get completed by the person who started them.
Where the openings actually are
Conversation analysts describe speech as arriving in units with predictable endings, and those endings — not silences — are where the next speaker normally comes in. That is why the gap between turns is so short: people aim at the seam rather than waiting for a pause.
This is worth knowing if you are the one who never gets a turn. You are probably waiting for a silence that will not come. Coming in at the end of a completed thought is not rude; it is the mechanism everyone else is already using.
The two interruptions that always cost
One is finishing other people's sentences. It usually comes from goodwill and speed, and it takes the sentence away from its owner — especially painful for people who need a moment to find words.
The other is interrupting to correct a detail that does not change the point. «It was Tuesday, not Wednesday» stops a story to buy nothing. If the detail matters, it will still matter in a minute, and you can ask then.
How to fix your side of it
If you interrupt: your problem is almost never patience, it is that you are afraid of losing the thought. Write it down instead — three words on paper releases you from having to say it now, and lets the other person finish.
If you never get in: stop waiting for silence and start using the ends of thoughts. And say it out loud when it happens — «hold on, I lost mine» is a sentence almost everyone honours, and it is much shorter than resenting the conversation afterwards.
One hundred ways to look at yourself
Reading about it is one thing. Ten of the tests are open right here — no install, no account, nothing saved.