FYI, it's yeast (a member of the fungi kingdom), not bacteria. Bacteria can spoil a good brew.
At home: National parks
At work prod: Functional names and/or numbers
At work DMZ: constellations, planets
I've noticed this phenomenon as well.
It appears to me that many families strapped for cash wear wealth on their sleeve, Cars, Christmas and all. Always trying to show off.
Meanwhile, we sometimes see wealthy folks driving cars long past their prime.
What seldom gets mentioned is that most internal combustion vehicles get is 25% efficiency "under the hood".
Even if you're electricity supply is 100% coal, electrical plants are probably 90% or better efficient at turning heat into electricity.
I'd rather just believe that it's done by little elves running around.