But it is interesting to think that in some ways both bullets and comets are very scaled down instances of a kind of energy that can pound-for-pound outmatch antimatter to whatever degree you want.

• 只是这一次来得快了点，才显得有戏剧性。虚拟的网络背后有真实的人，每个人都要对自己的言论负责。大家该是丢分，还是丢份，都是文责自负。"