ok but real talk, knees are genuinely one of the most marvellous pieces of biomechanical engineering. They can withstand decades of constant movement, can allow extension (with a lot of force) even when bent 180°, can withstand - and move - hundreds of kg per knee (with enough practice) periodically also for decades, and can comfortably remain with your entire body weight resting on them at any angle from 0 to 180° for any length of time. It’s amazing that everyone doesn’t have constant knee pain or have their knees simply fail altogether.
ok but real talk, knees are genuinely one of the most marvellous pieces of biomechanical engineering. They can withstand decades of constant movement, can allow extension (with a lot of force) even when bent 180°, can withstand - and move - hundreds of kg per knee (with enough practice) periodically also for decades, and can comfortably remain with your entire body weight resting on them at any angle from 0 to 180° for any length of time. It’s amazing that everyone doesn’t have constant knee pain or have their knees simply fail altogether.
It’s just that sometimes they don’t respond to input.