Astrophysicist Reacts to Interstellar, Part One: How To Leave The Planet

It's finally time. I'm going to dive in deep to the science of Interstellar. We're going to talk about everything from wormholes to black holes to plot holes. Let's kick things off with the crop blight that motivates humanity's exodus. Is it realistic? What is the plot purpose of it? Can our atmosphere really change that dramatically?