Brainstorming is the stage of the process where you take all of those artifacts you’ve captured and combine them in new ways to come up with innovative ideas.
Brainstorming starts with wild ideation. Combining artifacts and coming up with some crazy ideas.
However, it’s not all out of the box thinking. As the brainstorming stage continues, you have to start introducing limits and constraints because games have limits – whether it’s a limit of space or time or technology or money or culture or the norms of the game that supply reasons for not doing certain things you are physically capable of doing or whatever...
Brainstorming isn’t all just coming up with out of the box, crazy ideas without limits.
It isn’t just letting your mind run free.
Sure, that’s part of it, but it’s only the beginning.
You need to subject your ideas to limits and constraints, make them sweat, see how they manage, and this is when you come up with the best ideas.