The key quote near the top (caps and italics are in the original):
The Photos in this Envelope are Guaranteed for all Time Not To Fade
Now that's what I call a guarantee. For All. Time. Wow.
And it does't even say that the guarantee applies to the photos that Capson's processed. I don't see why I couldn't place other photos in there and have them last forever, too!
The link to Ultrarunning, of course, is that while I do sometimes carry a camera into the backcountry, by and large it's more trouble than it's worth. Seldom have I a taken a shot that was an absolute gem...but it does happen. Enough, I guess, to keep carrying the camera.