11 November 2018 - energy resources

If you are a plant, your photosynthesis is only 1% efficient, and yet energy is your cheapest resource. That is why cellulose is made of sugar, which is why wood burns so well, which is how we evolved to cook our food, which is how we garner enough energy to grow big brains, because if you are an animal, energy is an expensive resource. Do you imagine that we can guess what space aliens might be like?