The Final Jeopardy! questions seem to be, by design, things you can't know. And so it's not about who knows them, but who can figure them out in thirty seconds.

When you see people who are really good at game shows, the one common attribute is a cool head under pressure: an ability to perform as well in the studio, surrounded by lights and noise, as you do on your couch.

You watch an old 'Jeopardy!' and the categories alone are very plain. 'Poetry,' or 'Movies,' or 'Physics.' If you watch it now, though, there'll be a theme board where the categories are all Hitchcock movies. Lots more jokes, lots more high-concept categories and questions.

When you make a decision, you need facts. If those facts are in your brain, they're at your fingertips. If they're all in Google somewhere, you may not make the right decision on the spur of the moment.

Being a nerd really pays off sometimes.

You live overseas, you see these exotic places and you want to know about them. But, weirdly, it also made me homesick for all these very prosaic places in America.

Even before you understand them, your brain is drawn to maps.

For some reason the most devoted mapheads seem to be kids.

I can't relax and sink back in the couch and watch 'Jeopardy!' the way I used to.

I have always loved maps.

I have condemned my kids to a lifetime of geographic illiteracy.

I would read the atlas for pleasure. I knew it was weird. It was weird.

I would stare at maps of Delaware for hours.

If it's on the Internet, then it's gotta be true.

It's boring to have the same guy win. I'm actively rooting against myself.

It's really changed me. For the first time I'm in favor of the Bush tax cuts.

It's so much fun that the money is just icing on the cake. There seems to be a lot of icing.

Knowing lots of answers but being a millisecond slow on the buzzer is indeed very frustrating.

Sure I have a cell-phone, so I don't have to remember everyone's number anymore, but that really wasn't a core part of my brain.

The future is here.