There is an ITF method to clear Alien Technology but you are not required to use this method. Any methods open up future travel for your sims. Traveling to the future is restricted by Alien Technology. Travelling to the future is not considered “normal” travel you do not have to clear Politics, Espionage, or Forensics to travel in time.

You may not interact with the portal until you are able to travel to the future (see below). It is considered “weather resistant” if you have Seasons (you need not put a roof over it). However, as you didn’t place it, it need not be in the 8×8 area despite Politics. You may not touch it. It falls under all the usual restrictions in order to move it at all, you need to lift Athletic to put it on the roof would require Architect, etc. When you start the game, a time portal will be placed on your lot. The Apocalypse now threatens not only your own world, but the entire future history of the Sims! Can you avert disaster and restore the utopian future for your descendants?

Sims 3 into the future