G'day all,
I was taught somewhere along the path to utter confusion that infinity was simply undefinable, or something like that anyway.
I think the idea was connected with integrals being between +/- infinity as opposed to definite integrals. (side issue.....Calculus is not like riding a bicycle..... if you don't use it ; you loose it)
To my simplistic mind, if I can say that the 'known universe' is 'x' parsecs from side to side, and I conceed that there is bound to be stuff beyond my present reach, then I am justified in saying that the universe is in fact of undefinable size; i.e. infinite.
The question of what the universe might or might not be expanding into is somewhat moot because the undefinable edge of the universe might or might not exist; it is beyond my reach. If this is so, then the answer to the question is beyond our reach and must forever remain so.
Confused?.....................me too!
