Teaching may be the noblest profession, but for Destin Sandlin, it is also an excuse to light cigarettes with a laser, fire an AK-47 underwater, and get leaf-cutter ants to carry a sign. That's because Sandlin is the host of Smarter Every Day (SED), a YouTube series that seeks to make science accessible – and interesting – to the average person. "People think I make videos about things that I already understand because I'm so smart, but they're wrong because I'm not smart!" says Sandlin, whose videos regularly log hundreds of thousands of views. "And that's the point of the videos – they're a voyage of discovery for me as well."