juggling
Glowing balls and a laptop
Juggling balls that light up, next to the laptop where the code is. Two of my favourite things on one table.

Juggling is my favourite way to think about focus. Three balls are fine. Add a fourth while the pattern is running and you feel, within seconds, what it means to add load to a system that was working a moment ago.
That is why the balls live next to my laptop. I code while juggling. Literally.
More about juggling, and why I explain tech while juggling, is on the juggling page.