在没有风和光的室内，仍然能够做到自给自足，供水供电的链式反应，家用核动力装置。

当你知道怎样随意地引发链式反应以后

就能使周围的空气的质量

随时随地×光速的平方

Is nuclear fusion really necessary?

When you can trigger a chain reaction everywhere in the air, that means you can make every bit of mass in the air multiply by C Square.