Yes, this is impressive, it has all the idiosyncrasies of podcasting, the pauses, turns of phrase, even the tones where we hear people putting things in quotes,

Yes, this is impressive, it has all the idiosyncrasies of podcasting, the pauses, turns of phrase, even the tones where we hear people putting things in quotes, etc. ... but it's also pointless. And it's likely different episodes on different topics will tend to sound very much alike; it's already the case here, I'm sure I heard another example where the two voices were the same. In less than a year we all have learned to recognize AI images with pretty good accuracy; text is more difficult, but podcasting seems easy in comparison.