>> my friend sudi is here with me. >> hi, sudi. >> my best friend! >> how are you doing?d to see you. welcome. all right, best friend sudi, what do you think? >> you know, i'm beating myself up because i recently read a book about ultra marathons, but i found it boring, so i put it down. and so i'm trying to think. >> oh, no! >> but badwater sounds really familiar and what the question is really asking is the lowest point to the highest. now-- >> the lowest point in the continental u.s. and the highest point are both in the same place. my instinct was utah. >> was. >> was that your instinct? >> no, my instinct was california because, ooh-- >> i know! >> i honestly really don't know! >> i love it when people just-- minds come together perfectly like that. >> we're usually so in sync! >> is the lowest point in the continental u.s.--is that death valley? >> death valley, i think, is definitely the lowest point in the u.s. >> do you think that's a definite? >> i think it is. >> you guys are like watching a sitcom. >> where is death valley? >> it's in california! >> okay, well