posted on Jul, 11 2008 @ 12:12 AM
Most light-source UFOs are misidentified aircraft. You would be amazed how many aircraft are in the sky at any given time, and to what lengths even
commercial craft go to reduce noise (it's rather difficult to hear those turbofans at cruising velocities and up above 5000ft).
And contrary to popular belief; top secret aircraft don't conduct test flights over residential areas unless it is absolutely necessary. While us
military people love to screw around with civies - potentially crashing top secret technology into their living room gets a lot of people re-assigned
to Alaska, Greenland, Antarctica, or some place just as desirable.
If you ask me, though, we shot down a few UFOs back in the 50s and 60s. This likely made them limit their 'manned' excursions to our planet,
instead using some form of probe or remote evaluation. Doesn't mean they don't visit us anymore - but they have likely reduced their presence just
like we are using more robots and technology to get a look at places we feel are hazardous.
There's that, and a few other possible reasons. Another could be that aliens using "stealthy" technology may have been visiting Earth for just as
long as other alien species that use more easily seen vessels. It's only been recently that we've been able to see the lesser-visible designs
(because we spend much more time in the air, have many more radars scanning the skies, have more ships on the sea, etc).
It's also possible that the "stealthy" designs are not trying to escape detection by us (or even care that we can see them) - perhaps it is one of
their own personal matter - a war or interstellar arms race.
There's also the possibility that we've fallen under different territories due to a war, political agreement, etc - or simply that our galactic
orbit has placed our system at a greater distance from the ports of another species - to the point where they have decided to visit us less.
Who knows, perhaps they are systematically evaluating our technological capability. There is the possibility that they are having trouble dealing
with our rapid technological development over the past 200 years - with regards to analyzing our capability, capacity, and potential.
It's likely a combination of the above - and there are certainly more factors that may be involved.