Can't believe I agree for once with SMG, but yes, hot talk would work if stations did it correctly, which means NOT doing T&A talk like they tried years ago. That was dumb and boring.
A perfect example of "hot talk" would be Tom Leykis circa 1991-1993 when he ruled PM drive in Los Angeles. He did current events/issue-oriented talk, but with high energy and a lot of provocative and edgy conversation.
"Hot talk" content was similar in a lot of ways to traditional talkradio, but the delivery was so much younger sounding.
All you need are talk hosts who are interesting, animated and non-ideologues. With the torpedoing of the farm system and the reliance on conserva-talk for so long, I'm not even sure where you find those these days is beyond me.
Even O&A and Stern don't do T&A talk anymore (at least I don't think Stern does as much of it). But the PC police still wouldn't allow the kind of Hot Talk that would work. Even Leykis can't find a gig now. With professional complainers out there listening to every word every hosts says, it's just too much trouble to take a chance anymore. Hence the reliance on political talk.