On the small parks, I just wasn't sure if they counted as an empty lot (because there isn't actually anything there) or as a "filled" lot (because in Edit Town, they don't have the empty lot symbol). We can change all of them, right? It doesn't count towards the five altered lots limit?
I posted about it on the Aliens thread in the Seasons board, but aliens that come up in CAS do have the full array of alien powers. They are excellent Dynasty founders because they can summon valuable meteorites and don't have to sleep.
On the Advanced Technology skill - it seems strange that it would auto-max as a teen, because children and up can learn it. I moved in the Larson family one time, and Not!Luke kept on popping the High Tech Collecter LTW, since he already had maxed Advanced Technology.