Ethernet is also an example of a tech that has an easy scaling path: hubs with switched uplink ports made it really easy to divide collision domains. In the ear

Ethernet is also an example of a tech that has an easy scaling path: hubs with switched uplink ports made it really easy to divide collision domains. In the early days before everything was switched you could instantly reduce collision losses with a little bit of hardware in the server closet with no other changes to the network.