Good stuff! Someone (I'm not sure who) said once, that "we should've come up with better ideas on what to do with the free time made possible by fossil fuels". Sometimes I try and imagine what would our world look like if we had been wise enough to use oil to produce food and heat only. No gadgets, no cars, no planes, no mass production. Just people living in small villages / cities, with easy food and warmth... Oil would've lasted several millennia, and climate change would not be as big of a problem as today... Anyway that ship is now gone.