this made me laugh (the cave part made me laugh)
"Tiny Reader Puts Wikipedia In Your Pocket | Wired.com
When the zombie apocalypse hits, you’ll want to have a copy of Wikipedia with you. And you’ll want to make sure it works even if the power is out, cellphone and internet connections are nonexistent, and you’re hunkered down in a remote cave. That way, you’ll be able to consult the sum of all human knowledge to figure out if that mushroom you’re looking at is a healthy and nutritious snack, or a fatally neurotoxic toadstool…"
(in the olden days sometimes animals were corralled into caves for the night)
From stone tablets to html code, it's not lost on me.