In what may be an obvious observation in all accounts. I realised I did not have as good a grasp on infinity as I thought I had. For infinity to be infinite in must go on for ever(obviously, this I get), however, it must reach a point on where it begins to return to numbers it has already used. For example 123412341234 (1234 being infinity). This is where my problem lies, for infinity is infinite, therefore it should not run out of unused values in the first place? What do you think, is it Cyclical or linear?