“
Our lives are full of portals, both literal and figurative.
We’ve divided up the planet into nations whose conceptual boundaries
are magically concretized in maps, in fences, and more dangerous
barriers. We enclose museums and universities and laboratories in
buildings whose doors truly lead to alternate worlds where new things
become possible. Every time you walk over the threshold of a library,
or through a door into a party, you open yourself up to the strange and
previously unknown. That’s what makes the portal such a powerful and
enduring metaphor. It’s based on our everyday experience.“
– Annalee Newitz