In 2006 the backbone was multiple channels of 1gps.
Today, even feeder trunks exceed 40gps.
The core backbone has multiple 40gbs trunks in load share.
They don’t make processors fast enough to read all that traffic. And ASICs that power it have a singular forwarding function.
So, the closets in use today... have the same crap in them they had in 2006 ? Yeah. That would impose some real limits.
Totally off point...
But, the numbers you’re quoting are more than suggesting that Moore’s law is still alive and well... somehow ?
Granted, throughput isn’t the same thing as a processor’s transitor density and computation power... but...
How relevant is the distinction ?