3rd Rock From The Sun, Season 1, Episode 13

We need look no further. Clearly the world ends sometime this year. We can all relax in the knowledge that all the answers to life's questions can be found in sitcoms from earlier decades. If you are familiar with 3rd Rock, you know that Dick Solomon, played by John Lithgow, often goes off on a lunatic tangent while lecturing the students in his physics class. Like this:

There you have it! Friendship obviously is just a big waste of time and yet everyone on the planet gets all worked up about these pointless little behaviors blissfully unaware of the great vaporizing meteor due in 2015! (awkward pause while his eyes nervously dart about the room) Which obviously doesn't exist because I'm kidding!

And there you have it. Like Dick said.