Quantum 'spooky action at a distance' becoming practical (https://phys.org/news/2018-01-quantum-spooky-action-distance.html)
(https://3c1703fe8d.site.internapcdn.net/newman/csz/news/800/2018/1-quantumspook.jpg)
Once we have worked this out we'll be able to 'hear' all the other civilisations out there. You didn't think they used radio did you?
404 page error there, Tank.
Ooop. Try now.