Capabilities of computers and software programs

So i was flicking round youtube last night doing the "rounds" when i came across this->



At first i thought this was hilarious and a very cleaver advert. Although an advert which really didn't get its point across too well since the whole thing was too cool for me to care about it.(good job creators, you made an advert so good i didn't care about anything but how it was made thus making the point of that advert useless, ha ha). I still sat there in amusement laughing at how patriotic the actors were about this so called job of building a plane in the sky, it was good.

Anyway, that aside, I was just very interested at how it was made. I don't actually know right now, but it must have been done using chroma-key (green screen effects) Since clearly it is not possible to build a plane in the air. But The whole amazingness of it just made me think of what is really possible with the software and computing power we have nowadays. The amount of detail that goes into these kind of things is astounding almost to the point where it looks life like. I guess in the future this will only get better, so much to the point where it could get hard to tell apart what has been created from what is actually real!