Things live in the trees around them. Libraries are full of books, books are full of knowledge, libraries and great concentration of knowledge.
Philosophy tells us....
Knowledge is power.
K=P
Physics tells us....
Power = (Force*Displacement)/Time
P=(F*D)/T
Math tells us....
K=(F*D)/T
T*K=F*D
(T*K)/F=D
Therefore, given enough Time, and breaking up that Time and Knowledge with a little Force, reality can be a bit Displaced around a library.
Be Careful In The Stacks.