No he is not a PhD yet, so there is still a (vanishingly small) hope that his advisor will fail him.
I haven't met too many PhD candidates in hard sciences that have taken 6 years, most seem to do it in 3 or 4. Must take longer in the fuzzy fields like history.
Not at all. I guy in my Yale grad school class (English) finished his PhD in 3 years, and left.
He wasn't the smartest one either, just the most determined.
It probably also takes longer when the person is an idiot. ;-)
After authoring this sterling example of ignorance and idiocy, his advisor should bust him back to pre-bachelorate and make his start over.