Nuclear is the best btw.

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[–] 21 points 4 months ago (1 child)

And then there is the timespan that nuclear waste stays harmful. OPs "indestructable" container have to stay indestructable for millions of years.

More like between 30 and 1000 years. Still a long time but you're being pretty hyperbolic suggesting millions.

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  • [–] 2 points 4 months ago

    The time radioactive waste must be stored depends on the type of waste and radioactivity.

    The back-end of the nuclear fuel cycle, mostly spent fuel rods, contains fission products that emit beta and gamma radiation, and actinides that emit alpha particles, such as uranium-234 (half-life 245 thousand years), neptunium-237 (2.144 million years), plutonium-238 (87.7 years) and americium-241 (432 years), and even sometimes some neutron emitters such as californium (half-life of 898 years for californium-251). These isotopes are formed in nuclear reactors.

    Sources: https://en.wikipedia.org/wiki/Radioactive_waste#cite_note-3

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