> This can also be described as "living in a civilization with abundant energy", and it's an admirable state of affairs I think this is the American mindset th

> This can also be described as "living in a civilization with abundant energy", and it's an admirable state of affairs I think this is the American mindset that I've noticed the most - a historical abundance of energy means future energy supply should be guaranteed. Big cars, A/C, central heating - all are inefficient uses of energy. Your body naturally produces heat, all day. Wearing insulating material, like wool, makes use of that heat. Burning fuel to replace its loss does not.