Sorry - it's been rather a day here, so while I'm waiting for the call to be on the radio (we're taping it so I don't have to get up at 1:30 am to attempt to be coherent), I'll offer a summary of some of my thinking so far. (I'll also marvel at how quickly this TBB meme is expanding.)
I've had several really interesting exchanges with people - and have been very entertained by various comments suggesting I'm either a moonbat or a wingnut or both.