I sort of said that wrong. I meant, every time we use pi, we use an approximation of it. I realize that pi is a proven value.
That's patently untrue.
I just checked, and it doesn't look like my calculator has an infinite amount of memory. Neither does my computer, or anything else..
It's irrelevant that it's often good enough. Engineering is not on the frontier of science; in fact, it can't really do what it aims to do if it is. Engineering, almost out of necessity, applies knowledge acquired by scientists where approximations are almost never "close enough."
Please don't equate science and engineering. They're closely related, but they are not interchangeable.
I like how a statement I made that was totally besides the point and was supposed to be in agreement with something you said ("Not to say some conclusions within science are a little bit off, but it's the best thing we have, and I think it's actually quite good."). I wasn't trying to equate them, I said that your statement reminded me of what engineers say (at least the engineers I know)