“I raise my head and see a red illuminated EXIT sign and as my eyes adjust I
see tigers, cavemen with long spears, cavewomen wearing strategically
modest skins, wolfish dogs. My heart is racing and for a liquor-addled moment
I think Holy shit, I've gone all the way back to the Stone Age until I realize that
EXIT signs tend to congregate in the twentieth century.”
― Audrey Niffenegger, The Time Traveler's Wife