To some extend. If there’s millions of people that are nearly as fast you’d have encountered them on your school or university course, but what you see there do

To some extend. If there’s millions of people that are nearly as fast you’d have encountered them on your school or university course, but what you see there doesn’t even come close (aside from the odd one out like the article describes). Since I haven’t, I can make a reasonable assessment of the likelihood someone is nearly as fast. Of course I might be wrong (maybe people in my general area are just incredibly slow)? But I’d have some confidence in the assertion anyway.