From Blaseball Wiki

The remainder of this article contains lore created collaboratively by the Blaseball community.

SIBRmetrics is a collection of divination methods used by the Society for Internet Blaseball Research to prophesy insights into Forbidden Knowledge such as Player Attributes, league-wide statistics, ███████████████ incineration, and more. The discovery of SIBRmetrics by the greater Blaseball community led to The Great Lore/Math Lore Split of Season β2 where the Diviners fled from populous Blaseball fan communities into an alcove designed specifically for prophetic research into the nature of all things Blaseball.