>>13887687The human foot is full of redundant bones, tendons, muscles, and ligaments because the human foot was originally used for grasping hence why from a design standpoint, the human foot is a disaster and prone to all kinds of injuries. All those delicate bones we retained still allow our feet to pivot and twist, but also to sprain and break. This tendancy to basically fuck up alot is only exacerbated with the adoption of shoes and hard concrete floors. Hence why all our prosthetic feet/legs don't at all look like human feet at all because the human foot is a mess.
If you want an example of a feet that are actually adapted for bipedalism you'll have to look to ostritches which have their ankle and lower leg bones fused into a single structure, and just two toes to stabilise the foot in running mode. The only reason their feet are so specialized and adapted to bipedalism relative to us is that ostritches had a 225 million year evolutionary head start on us in walking upright.
Let me remind you that a literal curved piece of metal/plastic can match the speed of a human with normal feet, and that the only reason our feet lasts for 80-90 years is because they're biological structures constantly undergoing repair hence why they begin to break down after a certain threshold because our body get worse at repairing shit as we get older.
