Pi is the total quantity of building blocks that exist to build with in the universe.

A black hole/singularity is just a place that is filled with base building blocks, and there is no room to move to new locations, it is solid dense base building blocks, and thusly no time because time is the movement of the base building blocks.

Heat and Energy are in the simply the quantity of base building blocks...being moved.

Also the creator has an amazing sense of humor in case you did not realize it yet.