LFTR will be the most efficient energy source ever developed. A fission reaction releases millions of times more energy than a chemical reaction, and a liquid fueled reactor can take full advantage of this efficiency. Solid-fueled reactors utilize less than one percent of their fissile material, discarding the rest as nuclear waste. A liquid-fueled reactor can consume nearly one hundred percent of the fissile material, almost eliminating long-lived radioactive waste and increasing fuel efficiency. An individual’s lifetime energy consumption could be supplied, through a LFTR, by a piece of thorium the size of a golf ball.