The reason this is possible is that at the grand unification energy there is no essential difference between a quark and an antielectron.

这是可能的原因是，在大统一能量下，夸克和反电子之间没有本质区别。

What could be more glamorous than understanding the entire universe, grand unification? And, by the way, it helps if you're Brian Greene he has other kinds of glamour.

还有什么能比洞察整个宇宙，伟大的统一更加。具有魅力呢--而且，顺便提一下，如果你是Brian Greene这很有用。他还有很多其他类型的魅力。

But a machine that was powerful enough to accelerate particles to the grand unification energy would have to be as big as the Solar System—and would be unlikely to be funded in the present economic climate.

但是一台强大到足以将粒子加速到大统一能量的机器必须和太阳系一样大——而且在目前的经济环境下不太可能得到资助。