You're still not answering my questions. Do you believe that no engineers use limits or calculus? Do you believe that limits and calculus are unrelated to the

You're still not answering my questions. Do you believe that no engineers use limits or calculus? Do you believe that limits and calculus are unrelated to the idea of infinity? Now you seem to be saying: "I have never, myself, seen the concept of infinity used to solve a problem in a way I deem significant. Therefore, infinity does not exist and is not useful to anybody." If I said the same thing about the number 65536, would it force you to program only 8-bit processors for the rest of your life? Based on some of your earlier statements, I'm going to guess that we're using different definitions of the word "infinity." I'd guess that to you, the word "infinity" means something like "the largest possible number, denoted ∞." I'd also guess that, in your claim about calculus above, you mean something like "I have never seen a calculus problem whose solution required you to write down an ∞." Am I right?