How Fast Can Words Change Their Meaning?

Back in the 20th century, when we all read the same textbooks and newspapers and watched the same TV shows, we could all understand the same language most of the time. Sure, young people had their slang, which changed from generation to generation, but that took time. Now, with the internet splitting us into different spheres of influence, people who live on Facebook have a hard time understanding a thing the TikTok generation says.  

Dr. Erica Brozovsky put on her longest earrings to explain how the internet has changed the meaning of words quickly in the modern era. Not only has she kept up with those changes, but she has linguistic terms to described what happened to those words. See, while words are changing their meaning faster than ever, they are changing in the same ways that words have always shifted.