With breeder reactors, the Uranium should last much longer. I read somewhere that you get approximately 100 times as much energy out of the same amount of Urani

With breeder reactors, the Uranium should last much longer. I read somewhere that you get approximately 100 times as much energy out of the same amount of Uranium when you use a breeder reactor, and don't throw the fission byproducts. So assuming we have 20 years of (currently discovered) Uranium, breeder reactors should make that last a theoretical 2000 years at current energy consumption levels.