>> no water? a water filter? >> 37 miles between water holes. i had no idea i could do it. i didn't think i could. i couldn't afford to go to the funeral. >> really? >> i had to do something. something had to give. and it gave. >> hey, nice to meet you. >> mike. >> jim. >> jim, pleasure. >> this is kind of part of the origination of civilization when we start to get specialized tools where we're not hitting stuff with rocks or stick anymore. >> right. >> we're forming our own high-quality tool. >> how did you get into this? >> something i thought was this impossible thing that nobody knew how to do anymore. an old archaeology student walked into class one day and