Consider this scenario:
You're hiking alone and enter a cave, the cave entrance collapses and seals you inside. You have reason to believe that rescue is coming, but not for at least 1 month. Assume death from starvation happens around 3 weeks. Inside the cave you have a tournicate, access to water and the ability to make fire.
If around the 3rd week you decided to cut off your own leg and eat it, would it prolong your life that one extra week until rescue? Or does this violate the 1st law of thermodynamics? Would it be an attempt at a human perpetual motion machine?
You're hiking alone and enter a cave, the cave entrance collapses and seals you inside. You have reason to believe that rescue is coming, but not for at least 1 month. Assume death from starvation happens around 3 weeks. Inside the cave you have a tournicate, access to water and the ability to make fire.
If around the 3rd week you decided to cut off your own leg and eat it, would it prolong your life that one extra week until rescue? Or does this violate the 1st law of thermodynamics? Would it be an attempt at a human perpetual motion machine?