New skeleton
Recorded
Reading…
Bones in
Joints
A joint holds two bones together and says how far it is allowed to bend. Stiffness and damping are what resists it near the ends of its range.
Muscles
Real muscle, not a motor: strongest at its optimal length, and weaker the faster it contracts — at full speed it produces no force at all. Hill's force–velocity curve.
Attempts
One row per attempt at moving — how far it got before it collapsed.
Learning over time
Fitness across episodes, so you can see whether it is getting anywhere.