USB signal timing goes mainstream. Just an FYI

This must qualify as the most obscure post in history: what exactly are you saying? I am not aware of any audio device employing USB4.

The deeper meaning of any of this post continues to elude me. I can though report that adding a 10m clock to my dac (Antelope Zodiac Platinum) connected via USB to an Innuos Zenith Mk3 results in noticeable improvements in resolution, impulse rendition and spacial imaging, presumably as a result of better timing on the USB connection as well as the actual d-to-a conversion. (This differs from USB reclocking since it actually addresses the dac‘s own clock and thereby indirectly the USB link in asynchronous mode). Timing accuracy in any case has nothing to do with RMI/EFI and ground level noise rejection by the dac. That in turn seems to best be achieved by passive filtering and galvanic isolation. And by the way: the choice of the clock’s power supply and power cord as well as clock cables has major impact on SQ.