Circles

I wonder if circles are the same throughout the universe.  The diameter times 3.141529 etc is the circumference of the circle.  The number Pi is an irrational number, it does not have a recurring theme of digits, they are ever changing.  Apparently therefore you cannot square a circle that is, define a square that has the same area as a circle.  
So at the food circle at the Mercantile in McKittrick....  Dan, the alternative energy goeroe buys stuff from the milk lady, (milk actually),  she pays me for the eggs for that week, I buy some tomatoes from a vendor who gets them from the Amish,  the vendor buys some things from Pieter's Pantry, and I invest the money in a book from Dan.  Almost could have left my wallet at home. 
Nice meeting, again.  Amy gave a presentation on alternative diets and it was remarkable how much we all are involved and have views on food.