How Do You Decide Which Podcasts Talk Shows to Go On?

I don't know how to actually technologically do it, but I wouldn't imagine any completely astonishing discoveries coming from it that are not already implicit in our knowledge of cosmology. And I don't think that physical conditions are gonna be that different, 100,000 years or 300,000 years light years away from the surface of last scattering that we actually see today. So it'd be great to see it, I love it. When promoting your new book, how do you decide which podcasts talk shows to go on? I will confess that I turned down a lot of invitations.