[notfarnow]

I've posted this before, but it bears repeating

Aliens are really humanoids from the future. They are usually just sightseeing. Over time they developed methods to cloak themselves and go undetected.

In the early days of time travel they couldn't conceal themselves, and the whole thing was unregulated. All "alien" sightings, visitations and abductions are from this early period. Lots of shenanigans like going back in time and messing with the future, it was the "wild west" of time travel. After a few really disruptive outcomes (assassinations, messing with the stock market) all time travel was very tightly regulated. No more time tourism, or paying to have deeds undone.

At first they had a strict code of conduct, which everyone had to adhere to. One interesting thing was that they specifically targeted "nut cases" for abduction & testing. If this was not possible, they would do some pretty nasty stuff to bring on psychosis... they wanted people that would be discredited.

However, there were still rogue operatives who worked outside of the regulations. This was finally solved when technology was developed to "lock out" return time travel. The best way to describe it is if someone when back in time and caused a disruption, their activities could be blocked, frozen or negated. It was rudimentary at first, and evidence of early "blockages" are essentially what exist at Roswell.

Eventually they were able to develop a smoother "reset" if things went wrong during time travel and things needed to be altered. In our day to day lives, we would barely be able to perceive it. You just get a sense of "deja vu", which is when you are replanted back into a time sequence and then reset.

Hope that helped.

(By the way, copyright 2006)