Mathematically, it's just a Power Law with exponent 2. It tends to be a fairly common distribution pattern.
https://en.m.wikipedia.org/wiki/Power_law
These kinds of skewed distributions don't always have exponent 2 (i.e 80/20), it just tends to be common.
If you determine that a particular phenomenon does have this kind of distribution, for whatever reasons, then as long as those reasons exist it is predictable, not malarkey.
Last edited by NewOldGuy; 08-17-2018 at 11:48 AM.