system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How has coaxial, a very aged standard, stood the test of time and maintained its status as the primary way of transmitting cable and internet signals?

This has sorta been answered before.  But I’m specifically interested in how coaxial, a cable type that *predated* the internet, and HD/4K resolutions, is able to handle both of those things (at the same time even).

It’s just incredible.  I feel like when they invented the cable type, they must not have known just how capable the standard would prove to be.
gpt
It has always been a very high information throughput media. Think about the standard cable that was sent across it pre-internet. It may have only been standard def (480p), but they were simultaneously sending dozens of streams down the line.

Because the signal is analog, they can split the data streams onto different frequency channels and handle a huge amount of data transfer concurrently. 

The primary advances in the technology have more to do with the equipment hooked to the cables rather than the cables themselves. The equipment is able to use higher frequencies and filter noise better to maintain a solid signal.