system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How does the transmission speeds across twisted pair cables keep getting faster with each new category (Cat5, Cat6, Cat7, etc...) When it is still essentially just four twisted pair copper cables?

See title.
gpt
The copper cables themselves haven't really changed much, but the insulation between them and shielding around them reduce interference and noise. The data doesn't get from one end of the cable to the other any faster, but you can squeeze it tighter without electrical interference mucking it up by the other end. Think about listening to someone talking really fast in a quiet room versus in a noisy public space or over a crappy phone, the clearer the connection, the faster they can talk and still be understandable.