I remember the loons, you know,

you know,

I remember the lunes, you know, basically trilling off across the lakes and the ponds that I was going

through that last week and a half in New Hampshire and Maine. I remember the sense

of the different trees and the different, you know, forms of dirt.

And it really was like, as much as I was brought to that utter fatigue,

my senses just became really attuned to what was going on around me.

And that's pretty magical, I think, too.

This is Scott Jurek.

This past summer, he set off trying to become the fastest person to run the Appalachian Trail, which is over 2,000 miles long.

It's like running from New York City to Utah.

Right at the beginning, he was flying along, making great time, but only a few

hundred miles into the trail, his right knee started to hurt.

And I started compensating with my left side and then developed a quad tear on the right side.

And over the next couple of days it got so bad where I can no longer limp on one leg because I had two bad legs and I'm thinking to myself

how am I going to get through this you know the record I thought for sure was out of the question at that point

but Jurek just sort of refused to stop and after a few days of basically limping along covering 30 miles a day instead of 50, he bounced back and could start running again.

But because of that injury, because of a few slow days,

the whole attempt was in jeopardy.

Up until the last day,

he wasn't sure he could break the record.

It's either sleep or get the record,

...