Communicate

Mankind figured out how to send and receive microwaves packed with data and sound.  We've modulated amplitude and frequency.  These are, of course, just words we use to describe an invisible phenomenon.

One has to imagine that other invisible means of data transmission are possible.  Directed subatomic transmissions...  There's probably some quantum communication being fired through us as I type this, and you read it. 

Or maybe not.  

Maybe we're quantum-entangled with something we don't understand, yet.  If so, I hope we find out in my lifetime.  If not, I hope we don't find out in my lifetime.