[brunes]

The cost to store nuclear waste is $600 / kg

When Starship is fully operational the expected cost to launch payload will be $20 / kg

IE you can have a 30x margin of error and still just launch the nuclear waste into space.

[sam345]

I agree with more nuclear but blasting waste (at least highly radioactive) to space is a problem as there's always a risk the rocket explodes and spreads the radiation on earth. At least I've always understood that's the objection and seems to me reasonable. Yucca mountain type solutions seem more palatable.

[pfdietz]

You encapsulate the waste so it survives any accident. This adds some weight, but not an enormous amount of weight.

[wolverine876]

Thanks. Where does that number come from?

Despite his Twitter account, Musk is not the savior for everything. However, maybe he would like to be blasted into space on the first journey to Proxima Centuri? If anyone can do it, he can!