One way to do that is to replace today's sluggish metal wires with higher speed optical connections. (sciencemag.org)
PS4 Pro owners though will still be able to use optical connections for their soundbars and sound systems. (techradar.com)
This is a pain because most receivers out there come with the Digital Optical connection rather than the Digital Coaxial and if you want to utilize the Digital Optical input, you are forced to open the front cover and run a cable around to the back — it's not a pretty site. (digitaltrends.com)