Physical proof that infinity isn't real

Physicist frequently use infinity when talking about fields (ex. V = integral of E*dr from 0 to infinity) but if the fields were infinite, be they gravitational or electric, they would span the entire universe and all things effected by it would collapse into a single, crushing point. This has clearly not happened and is not happening. QED, infinity is not real.

any number of nines you take :still not equal
What you need to understand is that 0.9 doesn't represent "a number of nines" but rather the fraction [m][b]infinity-1/infinity[b][/m], and that the difference between it and the natural 1 is so insignificantly small that for all intents and purposes it doesn't even exist.