It&#x27;s been funny to watch the various phy standards converge in feature-space (alas, not interop-space) over time. PCI got a packet architecture with addresses and routing and credit-based flow control, USB got a packet architecture with addresses and routing and credit-based flow control, SATA said &quot;screw it, we&#x27;ll just become PCI-e, because they have packets and routing and flow control,&quot; and thunderbolt basically <i>is</i> PCI-e...<p>Unfortunately I think Ethernet might be too fragmented to ever take the convergence to its logical conclusion. But who knows. If someone high on the food chain at Intel wakes up on the other side of the bed one day it could happen.