Interruption is sometimes productive though. If the person speaking is not able to stick to one point at a time and instead goes on a monologue expanding multiple topics, others may have critical things to say, but are not able to say because by the time the person stops, the dialogue has moved on to a different topic.
This is very important in say a business setting where decisions need to be made while evaluating all the aspects of the task at hand. If useful information is not discussed because the only way it could’ve happened is by interrupting the speaker, then everyone loses out.
Or if they’re building castles in the clouds, letting them spin not only themselves up but everyone else is not conducive to getting to a reasonable outcome. They’ve built a pretty picture based on bad assumptions, now you get to be the asshole by tearing it apart. It might be kinder to not let them finish.
This is very important in say a business setting where decisions need to be made while evaluating all the aspects of the task at hand. If useful information is not discussed because the only way it could’ve happened is by interrupting the speaker, then everyone loses out.