Imagine if you powered cars with only what fuel outgassed naturally from a tank full of kerosene, and dumped the liquid remainder regularly - and you'd have clo

Imagine if you powered cars with only what fuel outgassed naturally from a tank full of kerosene, and dumped the liquid remainder regularly - and you'd have close comparison to how much we are actually using up of the Uranium available due to focus on light water Boiling and Pressurized Water Reactors. There are designs with much higher burnup rates (how much fuel in a rod is actually used), as well as designs that do not need enrichment and will happily run on naturally occurring uranium mix - self-enriching as they work. There are designs that will take mixed in waste from other designs and further burn it down, reducing amount of high-level radioactive waste. All of that is barely scratched in practice.