When you make the good faith assumption that people are actually reading through the content, the numbers start to seem a bit more rational.
The good faith assumption here is that Twitter only counts tweets read but does that mean the client reads the tweet or the user? The server delivered them all the same, whether a human reads it or not. So does delivery of the tweet by loading it onto the device count or some nebulous amount of time spent lingering on the tweet?
> "I'm certain I scroll at least 100 tweets/minute."
Many Twitter users, including literally the person you are in conversation with, scroll through dozens/hundreds of tweets a minute.
Not sure if you're actually used Twitter before, but many tweets are only a line or two of text, and it doesn't take more than a second to process them.
Additionally, if you're quickly scrolling through replies or someone's history to try to find something, it can render hundreds of tweets in a matter of seconds.