Quote Originally Posted by mrdevious
geez, every time we have one of these threads (anywhere) somebody says that, in those exact words, without any explanation as to how. just because they heard it somewhere.
Spacetime
Also found in: Columbia, Hutchinson 0.06 sec.
This article may be too technical for most readers to understand. Please expand it to make it accessible to non-experts, without removing the technical details.

http://encyclopedia.tfd.com/spacetime

That's where it's from.