I often wonder what would happen if an Asteroid impacted the earth and the only survivors were a tribe on a small island.
How long would it be before they left the island?
How long before they started "growing" intellectualy?
What would they find throughout the rest of the world in 5,000 years.
What would be left to show their descendents how far we had progressed before we were virtually exterminated?
I watch AA just to see what kind of interesting things are out there, i dont believe for one second Aliens are visiting this planet.
I do however wonder if maybe our ancestors didnt reach heights we dont give them credit for before something as mentioned above happened.
Machines and modern tools would return to dust in what, a 1000 years after people left them?
Who's to say they werent using diamond tipped drills or lasers?
Imagine the surprise of people in 5000 years that happened along Mt Rushmore, what would be around to prove that we had reached our current intellectual state?
A CD-ROM? Books?
or would they just assume that Aliens must have visited because cavemen couldnt have accomplished that.

This is the kind of stuff that goes through my head after watching AA and then a heavy dose of Life after people.
I will let people believe what they want to believe, it does me no ill if someone believes that Aliens are visiting ( i cant actually PROVE that they dont)
Personally, i find it just as irritating when someone comes up with all the answers even though in reality they are just a different set of opinions.
Unless someone finds the blueprints for the pyramids and a bill of materials its all just an opinion, some more logical than others, but opinions just the same.
Try not to stomp on one persons opinion in favor of your own.
Have a nice day