John,
yeah we can debate the last 2 years. If he used something or not. He upped up his exercises too. Adding really heavy weights to all the bar exercises etc. Let's assume it's a combination of the both hehe ^^
But yeah nontheless til 2013 it shows really nice, what one can "await" from hard work and dedication - which not to argue he has more than enough - and that nothing worldmoving is to be achieved within a few month of training or a year.
I think many people are missing a real reference how one can change from what they are, into the people they see that are already 'there'. They have no idea how long of a way this is, and see all these "change within 6 weeks" falsifying advertisements. And 'we promise you to look like this within 3 month' yadda yadda...
On top of that we live in a time where everything is awaited to be happening instantly and there is no patience.
Mix all this and you have people with no perception for what a body can achieve naturally and what not, and in what time.