I personally didn't see any typos. I have this auto correct mechanism in my brain that ignores all the typos (which does have a bad side because I do a lot of t

I personally didn't see any typos. I have this auto correct mechanism in my brain that ignores all the typos (which does have a bad side because I do a lot of them). I'm not sure what grammar nazis look for in an article. The point the author trying to convey or pointless study of grammar?