> 5 orders of magnitude too small for another.
Nitpick on an otherwise good post, but I don’t think there are very many 6billion RPS systems out there, and those that do exist are almost certainly using bespoke, purpose-built tools
Could be base 2. ~1.3M RPS is a lot higher than most will ever require, but still within the realm of possibility.
Maybe there would be more if it were more straightforward to do so?
Fair.
The highest I could think of is WhatsApp, which gets ~1.6 million RPS on average, and they use MQTT