[imeron]

I do wonder if they can continue improving interconnect specs as with Thunderbolt 4 the cable seems to be already the limiting factor. It’s thick, expensive and only available in very short lengths.

[FootballMuse]

100% it is an looming adoption challenge. The same problem exists with finding verified DisplayPort 2.1 80Gbps cables.

Optical interconnects might be the only way forward.

[WithinReason]

Thunderbolt was supposed to be optical originally, maybe it's time. There are rumors of PCIE 7 being optical too.