If you don’t teach it or write it down, the accumulated knowledge of your career is gone. Yeah. Keep your knowledge in a working memory. Keep your tools sharp.

If you don’t teach it or write it down, the accumulated knowledge of your career is gone. Yeah. Keep your knowledge in a working memory. Keep your tools sharp. We learn by doing and so on.. Add to this that in an IT field things are changing so fast, that you need a constant daily learning to stay in a shape.