Writing
Writing is thinking, but we are incentivized to do rather than think. If you’re good at what you do, the market (the people you know professionally) will discourage you from changing.
For a change to be strategic, creative, and aligned with the person that you are, it must be done independently (in solitude) and before measuring it in the world. When we change what we do, we write a new way of being ourselves at work. And that always requires language.
If you don’t write independently (not for clients), you will find it challenging to think for yourself (and not for clients). Writing about living ideas and change (development) are the same and can exist in harmony as long as they are done in places that afford you being you and don’t pressure you in the wrong ways.