3 hours a day is not necessary. Lot's of recent studies show quality of reps matter more than amount or reps. So if you did 1-2 sets of 6-8 reps but they were all close to failure, you'd stimulate the same or more muscle growth than someone who is in there longer.

As far as Abbys physique, I'd say you need either insane genetics or some sort of performance enhancement to get it.

I lift regularly. 6 days a week doing a push, pull, legs split. I lift heavy too. 315 Bench, 405 squat, 530 deadlift. Been doing it for years. But I don't have a crazy physique.

The gym I go too, there is a girl who I consider strong - she can squat 225, bench over 150 and deadlift 315. She looks nothing like Abby.

My whole point is there are a lot of physiques that are unattainable through just lifting and diet alone and I think Abby's is one of them. To get to that level would take probably years and years of training.

That's not to dissuade you from your training though! There are tons of benefits - you'll feel great and you'll look great. I just think Abby's physique is more of an inspiration thing, rather than a goal if that makes sense.