Alex Schmidt and Katie Goldin explore why high fives are secretly incredibly fascinating. They also interview returning guest (and National High Five Day co-founder!) Conor Lastowka.

Visit http://sifpod.fun/ for research sources, handy links, and this week's bonus episode.

Hang out with us on the new SIF Discord: https://discord.gg/wbR96nsGg5

Check out Alex's new "explainer podcast" about all things MaxFun: https://youtu.be/6kNplapKs-w (It's uploaded to YouTube because he filmed his face while he taped it.)

Help support this show and unlock bonus content! Become a member at https://maximumfun.org/joinsifpod