I did not state that mine was a definitive viewpoint, it wasn't. It was simply the most logical viewpoint, that was all.
Your viewpoint that advanced aliens exist and travel to Earth all the time requires far more proof in order to have even a slight chance of being seriously considered. For example, ships going at FTL speeds ought to be exhibiting Cerenkov radiation.
For macroscopic objects, even approaching the speed of light is not possible, and that is certainly a law of physics that nothing can change. But there might be other ways to travel over astronomic distances in a reasonably short time, ways that we currently ignore or could only guess, for example in JP Petit cosmological model with twin universe: ours of matter and its twin of anti-matter (an idea originally due to Andreï Sakharov).
http://www.jp-petit.org/science/f300/a301.htmThe Drake equation points out numerous barriers to the notion of aliens and humans ever being able to interact. For example, it points out that civilisations, like species, have a finite lifetime, so, for all we know, different galactic planets might only produce intelligent life once every 100 million years or so before that sentient life ultimately becoming extinct and never leaving their home solar system.
The Drake equation, or Green Bank equation, is based on a whole set of conjectures. Anyway, most advanced civilizations possibly or probably destroy their environment and thus self-destroy before being able to travel to other solar systems. This process that some have called “galactic selection” (for example Harrison in “Cosmology, the Science of the Universe”
http://www.cambridge.org/us/academic/subjects/physics/cosmology-relativity-and-gravitation/cosmology-science-universe-2nd-edition) would ensure that civilizations able to travel in a galaxy are not destructive. Even if the race at their origin goes into extinction as, yes, every living species has a limited lifetime, possibly another race could carry over their technology. Just conjectures again, but who knows?
The point is that aliens are by definition alien by nature and would therefore be extremely unlikely to possess the same characteristics as humans re curiosity or whatever.
Yes, and it also means we can’t know their psychology and motives by analogy with ours. Perhaps they are less curious than us… or are perhaps they are more curious! Most intelligent animals are curious, though, and the more intelligent they are, the more curious they appear to be - and it seems to be the same for human individuals!
In terms of resources, any aliens travelling the stars would likely have access to an infinite amount of resources(see the Drake Equation and things like the Dyson Sphere). for example), so they would not need to be hostile to humans in order to get extra resources, and there would be no need to be friendly either. Indeed, the sheer alienness of the alien would mean they likely would neither understand us or even ever want to communicate with us.
If they were really hostile, they would probably have destroyed us long ago. They don’t appear to be very friendly either. We can understand the behavior of animals, but animals can’t understand much of ours. So, logically, a more intelligent/advanced race would understand our behavior and motives but we would be unlikely to understand theirs. In fact, it looks like it’s happening exactly this way.
Again , check the reports and facts about UFOs first and go into conjectures, hypothesis and theories afterwards. The irrational opposite method would be like asserting in 1522 that we can’t circumnavigate around the world because it’s flat and thus Magellan expedition is a hoax.
Interesting discussion, by the way!