system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If we are so much happier when we are doing tasks (ex: exercising, reading, etc.) why is our brain programmed for us to be lazy?
gpt
Our brains are programmed to be efficient. When you're trying to survive, energy is valuable, and you don't want to use any more than you have to. So you hunt, get your food, and then use as little energy as you can until the next time you need to. For us hunting now constitutes going to the fridge.