One could say spacetime can grow, in the sense that there could become
more of it between two points. But it doesn't grow into any outside
space, since it is space itself.
I hope this was comprehensible; the math is simple but hard to
explain (obvious in retrospect, as usual).
-- ----------------------------------------------------------------------- Anders Sandberg Towards Ascension! asa@nada.kth.se http://www.nada.kth.se/~asa/ GCS/M/S/O d++ -p+ c++++ !l u+ e++ m++ s+/+ n--- h+/* f+ g+ w++ t+ r+ !y