Barbara Oakley: Learning how to learn
Diffuse mode: let your mind wander and explore. You often end up with ideas that are a little bit more outside the box
e.g. Free-flow journaling, mind mapping, doodling...
Focused mode: solve problems in a very specific and given problem space
e.g. Solving an equation, applying a specific creative framework...
You need to alternate between the two modes of thinking to be as creative as possible.