Posting here for anyone who might not know this: you can click and hold on most YouTube videos and they will play at 2x. I find that to be a good test at whether the host is communicating effectively. If I can understand them perfectly clear at 2X they are talking too slowly.
Then you get things like the ATP (I can't bring myself to say ATP podcast because La Brea Tar Pits and all that) where two hosts are fine at 1.5x and the third becomes a chipmunk.
Maybe they can make Overcast have dynamic speed based on speaker.
Who of the three do you feel speaks much faster naturally?
Here's where I admit that I can't identify them - but offhand I think it was Siracusa. I know because I tried speeding up a recent episode and he started talking and I had to slow it back down.
Definitely Siracusa.
I watch everything other than songs or something cinematic at 2x anyways.