Wow, I'm exhausted for this guy. The way this is edited is just bad. The guy needs to take a breath. They started the audio from the next edit before the guy has fully completed his current sentence. It's like they had a hard constraint on how long the video could be, and cut out all of the silence to make it fit.
Well, that's the concept of the CrashCourse channel. This video is actually slow-paced compared for example to their World History series.
It's still interesting. After a while you learn to pause the video to let the information sink in.
I like it. It's like listening to a podcast at 1.2x, you can always rewind it if you miss something but the general pace works.
My podcast app setting is up to 1.7 now. Listening to normal speed spoken word audio (e.g. on the radio) seems like a brain injury.