Pedantry is good. I spoke imprecisely. I was thinking of the median. Statistically, exactly 50% of blocks arrive within about 6:56 m:s or less; that is >= 30.7% faster than 10 minutes, “much faster” in my book.
Which is 0.693 of 10 minutes, with 0.693 of course being the natural logarithm of 2. Isn't math fun!
Most Bitcoiners get this wrong—even most regulars in Development & Technology.
I have saved a rough draft of a post I've been meaning to polish up and post for a while regarding Poisson processes, because as you say, they are generally poorly understood even by more experienced users. It was inspired by this post and the discussion which followed:
https://bitcointalk.org/index.php?topic=5368838.msg58369934#msg58369934