A team at the Technical University of Denmark has managed to blast 43 terabits of data down a fiber cable in a single second, setting a new world record for the fastest ever data transfer speed.
For reference, that's 1GB of data in just 0.2 milliseconds.
These records tend to be broken every few years (the same university held the record back in 2009), but what's promising about this one is that it uses similar technology - firing a single laser down a single fiber - to that used in fiber connections today.
Meaning that while it's the stuff of press releases and record books now, it might only be a few years until speeds like that hit the real world.
Well. The parts of the real world with decent fiber internet infrastructure, anyway.