Human Efficiency

Assuming you eat 2000 calories a day (8,400,000 joules), you use, on average, 97.2 joules per second (97.2 watts). This means we are pretty much as powerful as a “bright light bulb.” So we run one of the more powerful computers in the known universe and an entire life support system that can transport itself and reproduce copies of itself while consuming the same amount of energy as a light bulb. We are remarkably efficient.