the physical difficulty. >> you can't think about how far you have to go in the whole loop, it could be hours. i think my second loop took me 21 hours this year. that is a day in the woods with no creature comforts. you have to just keep moving forward one step, one book, one climb at a time. >> for even the most accomplished all tra rrunners, impossible. >> i am going to self extract. >> this is really trying to provide an opportunity for them to bring it out. >> at the point where you are lost or where you made some mistakes, it will be physically impossible to get in in time. >> around loop 11, if we can find it, it seems like we're not going to make it. it would be great if everyone