Brainstorming

Should be done alone and then we will have to refine ideas together

"My feeling is that as far as creativity is concerned, isolation is required...The presence of others can only inhibit this process, since creation is embarrassing. For every new good idea you have, there are a hundred, ten thousand foolish ones, which you naturally do not care to display."
Isaac Asimov

The part of our brain that usually leads to our most creative ideas is called the “default mode network.” It’s what gives us the ability to relate seemingly unrelated concepts, to create novel connections, to see patterns where others see noise. This network works best when we daydream, when we’re quiet, when we’re involved in mindless tasks and are just staring off into space, not really seeing anything in the outside world. It works best when we sleep. In other words, when we’re alone.

https://www.fastcompany.com/3069033/are-people-more-creative-alone-or-together-trick-question