Why do all of you keep saying that ? Do you think IRL the life of Pu in a reactor is 2h47 ?
It's more like a year ... (maybe less, I would say half a year)
We keep saying that because its the truth :P. Hopefully the Nuclear reactor will get changed in the future to be a lot more realistic, with pretty much everything you suggested recently, as well as higher power output, but MUCH higher cost and risk, and should also require a higher amount of U235.