... re-contemplating the meaning of life because their nihilism seems so meaningless and is therefore not an alternative to a meaningless world? We can't know, right now they seem content with studying soil and dirt. And why not? The truth could hide anywhere. If only they're allowed to find it.
You always seem to find out-of-the-ordinary situations, and even better, your camera is with you too then.
I guess that nihilist can look for meaning where it is the least expected to be found, just to make sure that they won't find it. I have my camera with me all the time - maybe not when I sleep - and my back thanks me to have moved to a compact camera recently, as before I used to carry TWO DSLR with me all the time.