The first pistol squat felt impossible and then trivial within the same month. The movement clicked and then consolidated very fast.

The posterior pelvic tilt cue in the handstand fixed my banana back within one session. Such a small thing with such a big effect.

Calisthenics at outdoor parks is the best training environment I've found. Fresh air, no membership, always open.

Polybius is an interesting choice to cite — he was literally a hostage of Rome writing about why Rome was great. That bias needs to be acknowledged.