Harvard Thinks Big rang in its fourth year on Thursday, featuring seven celebrity/professor speakers with 12 minutes each to present the next—you guessed it—big idea. Although Drew Faust couldn't make it (allegations were made that she was off in LA lobbying the Academy of Motion Pictures for Lincoln), people still packed into Sanders Theatre to attend the event, one of Harvard's newest traditions.

In case you missed it, here is our tl;dr version of the two hour event.

Joseph K. Blitzstein: "The Soul of Statistics"

Professor of the practice of statistics

In 1865, a chocolate maker's longevity was 73.6. A professor's was 66.6 and a student's was 20.2. What this tells us is that chocolate is always the answer, conditioning is the soul of statistics, and without regression towards the mean, the world would be filled with 10 feet giants and 4 inch people.

Doris Sommer: "Cultural Agents All"

Ira Jewell William Professor of Romance Language and Literatures, Professor of African and African American Studies

According to Kant, art can communicate that which doesn't have a name yet. That somehow involves the mayor of Bogota replacing cops with pantomimes to direct traffic, which actually correlated with a decline in traffic accidents and homicide rates. Apparently, the shock value of clowns, and public art, reaches across nations.

Katherine J. Hinde: "Why Mammals Suck"

Assistant professor of Human Evolutionary Biology

Mammals suck (milk) way better. Milk is a magic potion, and is literally filled everything and anything an infant will need. It can prevent obesity, save up to 1.5 million deaths from diarrhea by contributing healthy gut bacteria, save premature babies—essentially everything short of curdling when in contact with lemon.

Roberto M. Unger: "No One Should Have to Do Work That Can Be Done by a Machine"

Roscoe Pound Professor of Law

Unger envisions a world where machines do everything that we can repeat, so we can preserve our supreme resource of time, to focus on what we cannot repeat. And when that happens, we shall achieve what we all desire, which is to die only once. Can you feel the chilling grip of dystopia?

Emma Dench: "Talking to Dead People"