Explains how Google Maps and Waze use big data to optimize a user's route via the immense amount of data collected by constant tracking. This clip also describes how City Brain uses big data to optimize traffic.
Charlie talks about surface tension in water and why it makes drops of water try to be spherical and puddles attempt to become circles. He also talks about optimization theory and how it applies to matching organ donors with people who need organs.
Kramer has drastically different opinions on cleanliness than his friends. He believed it was critical to be in the shower for an hour to reach optimal levels of cleanliness. Jerry and Elaine get by with ten minute showers and give him a few tips to improve his showering efficiency and technique.