The idea is very simple. If you are empowered to create some spreadsheet formulas to simplify your daily work, then the next time somebody says, “Oh, this is just a functional programming – a lambda or something,” then you will note, “Oh, this is just actually an ‘equal sign’ in your spreadsheet,” so that you do have this working firsthand experience of writing functional programs without being a professional functional programmer, and then you will get connected to the community that can connect better above this ladder.