E-mail Makes You Smarter
Purely observation but I believe that e-mail has made people think I am smarter than I am. Somebody asks me a question and I have the time to formulate my response. Reread and rewrite it until it's grammatically and argumentatively correct. I can research possible options. It gives me the flexibility to answer on my own time.
In person, I'd end up stumbling over the right word or misphrase things in such a way that nobody would have a clue what I'm saying. I'd say stuff that's factually wrong. Or I might stand there for a few minutes saying, "I know what it is. Just give me a minute to remember."
So, if you meet me in person, rest assured that I really am smarter than I sound.