About 15 years ago I gave some networking courses at a local education center, it was all young kids (18-20 years old). When I told them that the speed we got back in the day was 4 kilobytes per second (56k on a good day), they didn't believe me at all.
I remember using a “high-speed” 14.4 kbps modem. I mean, these were thousands of bits per second, really insane. Faster than many LLMs.
At 2400, you could watch the characters from the BBS come up on your screen, but at 14.4 practically the whole page came up at once!