four dimensional spacetime(3 in space, 1in time), time's arrow(past present future all real and existing), entropy(from order to chaos), quantum entanglement(teleport technology), the vibrance of strings
比星际穿越好看多了steven weinberg:…we don't know.but if you only work on the things that are already well established,you're not goong to be part of the next big excitement.如果你的工作只是关于已经被很好地证明的东西那你将不会是获得下一个巨大惊喜的一员