There is an age old question about which is better economically; is it better to buy a large size product that may be cheaper by unit amount than a smaller size, or buy the smaller size so that there is less of a storage problem, waste, and transportation issue? Well, of course it depends on personal choice and preferences, and each product will be different. But here is one food item that will always be a better buy when it is larger. Pizza is almost always a better buy when large than when small! Why? It really is simple math.
If you are at a local pizza place and dining for one you have the choice of an 8 inch personal pizza or a family size 16 inch pie. Based on price, the smaller pizza is cheaper, and the large one is perhaps 50 % more expensive but only twice the size so you decide on the small one. But when the math of a circle is considered, the larger is twice as large in diameter, but it is four times larger in area! That is because the area of a circle increases with the square of the radius. Recall that the diameter of a circle is the distance across, and the radius connects the center of the circle with any point on the circumference, which is half of the diameter. When you check the second image above, you might expect the area to be twice as large, but it is actually four times greater!
When you consider the fact that pizza can be reheated, frozen, and is the breakfast of champions, larger is better. But what if the pizza is a square or a rectangle? This does not count as it is no longer a Pi...

There has been a "National Day" for everyone to turn off, disconnect, and re-engage with the real world since 2002. The concept is simply a way to recognize that we have all become too comfortable with the addiction of connection. Whether it is via the computer, cell phone, music, or any other extraneous distraction, we seem to require all of this artificial stimulation. When we have checked the text messages, Facebook, Instagram, and Twitter, and become bored, we go to Youtube and get stuck in the rabbit hole of technology.
Well, I can safely say that I have been essentially unplugged  for quite some time. I bailed from Facebook six years ago, carry a cell phone only for emergencies, refuse to text , have a Twitter account that has never seen a tweet, have never used Instagram, and I have limited my TV time. But what is this? Am I being a hypocrite? Here I am typing a blog entry, researching upcoming posts for all of my topics, checking email, and visiting several sites to keep up with the technology that I am supposed to be disconnected from and advocating technological celibacy. But, I can explain!
Unless you want to live under a rock in the dark, it is impossible to totally be "out of the loop" of life in the 21st century. But, I do believe that the national day of unplugging does have merit. It is perhaps a metaphor for feeling connected to other people. Unfortunately, many of those "other people" are virtual. And, maybe, the 24 hours of disconnection will at least help us to recognize that we are too reliant on technology and should focus more on real conversations with real people. There is a link to the "national day" here. But, I have to end now as my land-line phone is ringing...