Simple harmonic motion
Knowledge work is a pendulum. Think. Do. Think. Do. You can use other labels – act/reflect, execute/measure – but gravity is the same everywhere.
Oscillation is a natural part of every system, of course, but let’s look closer. Here’s the speed at which a pendulum travels, superimposed on its motion.
At the point of largest displacement – when you’re deepest in a particular phase – you’re actually at a standstill. Only when swinging from one phase to the other do you reach your top speed.