You don't have to be steeped in psychometry to understand what a standard deviation is.
And if we're going to talk about intelligence at all, it is often helpful to keep in mind the difference between IQ and intelligence.

If you understand the point there's no reason to make a comment like this except as an attempt to show off

Rebuke denied. While IQ 250 makes intuitive sense, as "smarter than we can possibly imagine", attaching numbers with two sigfigs to it is misleading at best. I don't know how one can tell IQ 250 from IQ 500.