Technically true, but not for the reason you think
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But you'll be hungry again in half an hour.
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That’s a thousand days’ worth of kcals.
On the other hand, that’s enough uranium for the rest of one’s life.
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And also, bananas are radioactive. If you ate 40.000 bananas in 10 minutes you would die of radioactive poisoning.
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Doesn't that depend on the specific isotopes? U-238 might be not that much of a problem as one might think...
I wonder what the best conversion rate from uranium kcals to human consumable cals would be.
Like is nuclear power to LEDs to plants the best route? Maybe radiation to fungus to some kind of slurry?
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If you are measuring calories that way, then you have to consider that anything you eat contains e=mc^2^ energy.
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This is technically incorrect, because calories in food are measured using a bomb calorimeter or similar techniques. In this device a small sample is burned and the heat is measured, which indicates the number of calories it has.
Uranium is fireproof. It has 0 calories.
Even enriched Uranium with a lot of unstable isotopes would not give up noticeable energy/heat in regular sample sizes for this process.
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The second level of stupid here is that 20 million kcal would last ~ 22 to 27 years (at 2000 to 2500 kcal a day), so not very optimistic about your longevity.
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