Nobody thought it was possible, says man who led project because he thought he could make it possible.
Also, this looks like quantum entanglement which is a thing that's hardly a new concept and/or considered impossible, so uh, dude needs to get out of clickbait mode and ship a working example instead.
The peculiar thing, I think, is that they did it outside of lab conditions, using something 'common' as a telecom optic fiber. But of course this wouldn't have got as many clicks...