Honestly, it can be hard to keep track. No one aged where I was originally and part of that world had no sun... It was a few years, at least.

Long enough that when I showed up in that other world, I looked like this instead of a kid, still.

[Roughly four years, and Ed didn't even have the luxury of growing up. It just happened one day. Not that he seems too impressed by the concept.]

Yeah, that's exactly what I mean. It's one of the more basic definitions, but as long as you have the materials you can create something of equal mass with it.

[He sounds... almost amused.]

Let me guess, alchemy's some joke where you're from, I get that a lot.