What's the difference between a math phd and a large pizza? A large pizza feeds a family of four^H^H^H^H two. I need to make adjustments for pizza inflation t

What's the difference between a math phd and a large pizza? A large pizza feeds a family of four^H^H^H^H two. I need to make adjustments for pizza inflation too, even though it still beats out the phd. How depressing.