After looking into it I have a hard time thinking about anyone or anything even getting close to figuring out a way to fold space and time.
Which is pretty much the only way you could travel such vast distances.
Billions of miles is just a drop in an ocean compared to the distances involved.
Do I want to believe? Sure.
Do I actually believe that there is a race that has developed within the same extremely short time frame that ours has? Hardly.
Written word has only been around for 10,000 years. That is a fraction of a fraction of a fraction of the lifespan of a star. And a totally worthless amount of time within a galaxy.
For another race to develop before ours, master space travel, and find us, all within the small window of say 10,000 years... pretty small chance.
If I had those type of odds I would be winning the lottery more often.
Does weird stuff happen, oh yeah.
Do I think we are being visited. Sorry, but no.
I think UFO's are very much earth based terrestrial technologies. It stands to reason that we all suffer a mass amnesia of sorts to varying degrees. All cultures seem to have some myths involving floods or great cataclysms in mankind's past. Assuming that human nature has not changed much since so called 'primitive' man to today we can come to certain conclusions that are probably pretty close to accurate of what actually took place way back in time.
The writings from India speak of Viamana craft and other such aerial crafts as well as fighting going on in the skies. Whatever the case, should we decide to ask ourselves the what if question of whether these tales are myth or based on fact we can look at where we are today and know that man can indeed create craft to fly. I mean after all we do it everyday, therefore the fact that we do it now makes it possible, plausible even that man may have done it in the past as well. Differences could be how they operated, the fuels they used and so on but the basic facts remain the same. That being that ancient writings seem to point to a time in the past when man was more advanced than what we learned in school.
Back to my point: If man is basically the same today as he was then, we can assume that given the same set of circumstances that our leaders today would behave much the same way as leaders in times past, at least regarding in how they rule. Let us assume that our leaders, we'll call them the powers that be (TPTB for short) discovered through various means that a giant cataclysm was imminent and that there was absolutely nothing they could do to prevent it. Let us assume that they would then adopt a 'save what you can policy' that was implemented immediately and that this was being done in various ways as well. For example we could safely say today that should this occur that TPTB would begin making vault like safe houses for seed banks. (they have actually done this by the way ) Some monies would go to the underground bunkers and shelter type 'cities' to house those selected and some would go to undersea bases as well as off world shelters either on the nearby moon or in space stations.
One could even say that some sort of genetic material harvesting of various DNA from all manner of life would be underway and what do you know? We could wonder big with cattle and horse mutilations as well as some other various reports of abducting humans and harvesting eggs and so on. Hmmmm?!
It could be argued that when money grew short that a giant fraud was perpetrated on mankind to simply take the money for some kind of giant bail out that was all a scam just to get money needed for these black op secret safe house projects to save TPTB and their selected minions leaving the rest of humanity to fend for themselves while they all seek shelter in their safe houses. One could also see that finally some sense could be made of all the wild spending like their is no tomorrow if one accepts that perhaps someone somewhere knows 'their really ain't no tomorrow!' But thats another story and needs to be proven.
My thoughts on UFO's are that they are simply survivors of the last time a great cataclysm struck and sent man back to the stone age. They survived in various ways, in various places that explain the 'gods' coming down from the sky, out of the ground, myths of having origins in caves, and gods coming up from the sea and going back to the sea. All these tales and more can be found in ancient writings with no problem at all. Looking at it for what it is or what it probably is we can safely assume once more that when these survivors finally were allowed by protocol or orders or whatever the case may be, be it from instrument reading saying its safe or predetermined dates set by their standing orders when they left that when they returned man no longer had much more on his mind than surviving. Those that survived did so by shear luck and those that were born after probably didn't get much in the way of education about history so by the time these survivors came back they were basically able to play god at will with the primitive stone age cast aways left to fend for themselves and even pick and choose among the woman as they saw fit.
It stands to reason that they kept their society and technologies separate from those that were unfamiliar and that they have formed a smaller sub or shadow society, even shadow government that actually calls the shots and perhaps always has as the so called 'watchers' of ancient stories and myths.
Anyway, thats my ramblings on it. I know the sayings about assuming but in this case something tells me that ancient leaders would have behaved much the same way as our leaders would today. If a calamity was coming they would not tell us about it and if they could get away with playing god to rule easier they'd darn sure do it in a heartbeat!
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), but would allow you to observe various "versions" of planets under various conditions. Maybe the visitors used a similar formula as we do to calculate the probability of life on our planet, moved between the spaces close enough to see us, then simply "flipped the channel" until it found an earth that supported life. If you're immortal, watching mankind evolve and change would feel like watching bacteria grow, divide, and die under a microscope. 
If I have to live out my days with savage monkey people, I might as well be waited on hand and foot, right?
