[Christian]

Hello Scott,

thank you for your reply and your latest lecture! It helped a lot indeed, in particular your thought experiment where we increase speed step by step and imagine what takes place in our body. I imagined an armada of vacuum cleaners, one in each muscle cell, where the cells with bigger vacuum cleaners help out the cells with smaller vacuum cleaners.

I don’t know if you know the old series “Once Upon a time… Life”. It would be cool to have an episode about endurance – of course with some vacuum cleaners involved. 🙂