Cara Santa Maria, science correspondent for the Huffington Post, does a series of videos there called Talk Nerdy To Me. See Martin Savage on physics and the simulation argument, Mark Jackson on cosmology and string theory, Mark’s PhD advisor Brian Greene on the multiverse, or a collection of interviews about Alan Turing.
The latest one features me talking about the arrow of time. Likely nothing you haven’t heard before, but it’s only five minutes! Could be a useful explainer for your friends who don’t understand why you keep mumbling about entropy under your breath. (People do that, right?)