"That much nuclear material" as in "enough to visit nearby star systems". Perhaps you've underestimated the literally astronomical distances involved, and how m

"That much nuclear material" as in "enough to visit nearby star systems". Perhaps you've underestimated the literally astronomical distances involved, and how much power is required to get there in anything close to a reasonable time-frame. It would be required to accelerate at full speed for centuries, then turn around and decelerate for centuries more. It's easy to imagine that taking enough nuclear material to be able to cause a non-negligible nuclear disaster on a scale that meets or exceeds past nuclear disasters. Fukushima and Chernobyl weren't exactly trying to travel to another star system, after all. Then again I might be completely wrong, but seeing as it's literally rocket science, I think you can forgive my ignorance and I can forgive your condescending tone.