I’d argue private caches and peering have changed the “structure of the internet”. Previously such investments would have been made by large telco and “backbone

I’d argue private caches and peering have changed the “structure of the internet”. Previously such investments would have been made by large telco and “backbone” providers instead, with the traffic originator footing the bill. The private CDN model is clearly more efficient than paying the likes of Verizon to lay more fiber.