It was only a matter of time, The Sims 3 official and sporting a teaser
Wasting no time to rally the Sim communities around their latest expansion-spawner 'The Sims 3' website has launched promising more once the March embargo is lifted.
"...another big addition is that the Sims actually do long term planning. He created a Sim and gave it the workaholic trait. Then he got the Sim a job as a waiter, which is on the restaurant track. The Sim then independently went off to try to level his cooking skill. It bought a cookbook and read it, it bought ingredients and started cooking. It called his boss and invited him over because becoming friends with your boss will get you promoted."
Basically the Sims would now take into account whether an action would be appropriate or not, a visiting Sim entering a home only to watch TV and mooch food while not bothering to interact much would no longer be the norm and fellow Sims could react accordingly if they did.