How Do I Add in a Side Comment in a Video?

Vidios are fun, different and have that snappy aspect to it. They look good fr they mest be a right painme ait's one of the comets i got. So veritasium his second channel is basically dead now because vertusius dassius was actually on science through multi media communication. And he's spoken quite a lot about how you can trigger your thought indirectly with vidios which normally relate to retrieval practice or research. But if you repeat yourself in a video, people will click off. I've alrady heard thats recognition, not recall. Their two different things. Which means you need overarching themes for each video.