My point is – When you talk abt advanced beings/aliens then obviously you need to see them in advanced forms( with superhuman abilities ..right? )

Also, aliens could also possess this problem of survival or population explosion which makes them compell to search for another.

See as I said before, if evolution is correct then whichever alien specie we will encounter will be developed in the environment of their home planet. Their chances of being like us solely rely on the chance of having an Earth like environment somewhere in the Universe. We look at the universe and we never find any planet with livable conditions. It could happen that our universe is just really small compared to what lies outside it. We could be a lab experiment of another alien specie. But the truth is, if there is an alien specie which is so huge then they will not need our planet for colonization. Similarly there could be planets which are really really small, so small that the creatures born there are of the size of our ants. They may be smarter than us, but they are too small(I read a novel once where the aliens are actually extra-terrestrial plantation. They came in planes dropped themselves on our earth and started growing everywhere. The point is that we are talking about way too many co-incendences here. For them to be able to live on Earth they should be having a planet of more or less the same size as earth.

If that specie lives on Jupiter they will start flying all over the place, if they lived on Mercury then their bones will be crushed in our atmosphere. Secondly, they should feel exactly as home on our planet. Have you seen how aliens in movies who come to Earth almost never need spacesuits. How come we cannot survive in even a single planet we have discovered, but the aliens seem to be making first contact but without any space suit for themselves. They never have gravity problems, you will never see them eating or drinking. They are so easily adjusted to 12 hour day night cycles. They don’t find it too cold or too hot here.

But if all the presumptions about this future alien race are made that this race is so god damned advanced that they can very easily live here, can’t they live on their own planet by making skyscrapers?
If they need fuel, can’t they just mine other planets? How about nuclear energy, all they need is uranium which can be found all over the universe(its not organic or carbon based). If they need Iron again its pretty commonly found over the universe.(I might be wrong about these things but then my Chemistry knowledge says there is nothing so fancy about these elements that they can only be found on earth, the only reason we exist on earth is because we are complicated carbon creatures, but basic carbon can be found anywhere).

Apart from that – they could also possess this hunger for more n more power and super ambition to rule on universe by establishing their regime on different planets in universe…right?

Power and ambition arguments are just very hard to swallow. Earlier we were dealing with survival argument but now you are talking about power and ambition. Now these are complicated human emotions. I would understand why a bunch of Dinosaurs would try to take over us, but saying that they want to take over us because they are power hungry is stupid. I mean it could also be possible that they feel more emotions than what we feel. We feel anger, love, hatred, jealous which animals don’t feel, it could happen that for this specie we are the animals. In cartoon series American Dad there is an episode where they ask the alien Roger who lives with the family on why is he so mean to other people, so in one episode he just stops being mean, and it turns out if he does not be mean then his body starts secreting this poisonous element which might kill him(he becomes really sick at the end of it).

What I am trying to point out is the folly of Sci-fi alien invasion movies. Most of these movies imagine humans which are really advanced and they try to take over us. The aliens might look different speak a diff language might even have telepathic capabilities but they never go beyond that. It becomes very important to imagine their spaceships traveling at the speed of light, and then we also have to imagine them to have lifespan long enough that they can survive a trip to Earth. I mean if they were 200 light years away from us then a race with average life span 70 years cannot survive a trip to earth.
Even if they are advanced enough to freeze their people so that they can survive a trip 200 years long, in 200 years their own people(who cannot be frozen) are long dead. Imagine Columbus went on a trip to this planet 200 light years far from us, by 2000 AD he will be back after spending 20 years on that planet in unfrozen place.
The question is would that really be a trip to a place 200 light years away from us or a time travel trip to 400 years ahead of Earth. When he comes back instead of sharing what he learnt about the other specie he would be learning more about ours and what happened in last 400 years.

Similarly, if an alien probe ship came here in 1800s to find out whether they can colonize us or not, he took all that information and went back and by now we are into space age already. Presuming he just reached to his planet, that means their forces will take another 200 years to come to Earth and who knows by then where would we be.

Regarding your point of “survival capability of them or their machines on planet earth” – I would say – why not?..how difficult would it be for advanced race to adapt on planet earth?( i.e. considering fruitful survival conditions on planet earth. I know it would be difficult for things which are adapted to survive in extreme weather conditions
but then – that’s where “evolution” comes into picture. They can adapt.
“If we found an alien race somewhere in the universe which is much less advanced then our race then would we first think of invading them or our first reaction would be to communicate with them and understanding them?”
==> I guess it depends on your leadership. Again communication could be barrier if we think US style governance .Where they prefer to deal with people on their own terms. On similar lines it also depends on alien leadership i.e. hostile/civilized curious/intrusive ..all depends on leadership and their ultimate goal. If they are just bunch of curious entities which want to explore species on different planet then – “we will be fine” but if they are power hungry race who wants to establish their regime on different planets then we have an issue

My point is that you really have to count for unknown territories, so aliens really have to send their machines to work on Earth terrain they will have to first count on their weapons working here.
Secondly, why would an alien race want to take over earth? Again we do the mistake of imagining them as Humans instead of some alien race. If aliens are exactly like humans(in thinking and behavior), the first question is why would they just wanna invade us and colonize us? If we found an alien race somewhere in the universe which is much less advanced then our race then would we first think of invading them or our first reaction would be to communicate with them and understanding them?

The point is, aliens could be in any form. They could be how we imagine 99% of aliens in sci-fi movies(with some sort of language, cool technologies and even superpowers(ET, Superman)). Or they could be our animal counterparts. They don’t speak, they just react to stimuli. They might not even have to eat us, they are gasses which surround us, absorb our energy from our skin and move on. They may or may not think. It could be any of those things. For all we know they could be stones. They could be humans but on LSD where they visualize way more stuff than us they could say UV,IR rays or they may not see whatever we see.

Realistically speaking any alien race which is so advanced than our human race that they come here first, realizes that Earth is one of the rare things which exists in the universe. If we are the first specie they found, they will not just take over us and make us slaves. They might do that if they have colonized many other planets and enslaved them in which case our problem is much more than just fighting this race. If any advanced race discovers us first thing they would do is to try to talk to us and find out more about us.(and no they wouldn’t care about giving amnesia pills to make us forget stuff, why would they care).

My point is nobody would create a technology like that because there is no need, its like having a Pet for a toaster. Instead of that, if something like that is actually needed then people would get a dumb toaster like we have right now and have a person use it.
Similarly if lets say President was given robotic security guards(to reduce the human causalities) which can think everything, then the question arises wouldn’t try stage a coup by killing the President and taking over or something like that. The truth is if you created robots which could think to provide ultimate security to the President why would you install a human mind in it, yes you need them to process all the information and surroundings like humans but then why would you give them the desire like human? Would you create a robot which will have a desire to go back to his family after work and spend time with his kids and watch sports? Would you give that robot a robot wife which wants fancy jeweleries?
My point is robots serving the president will have all the smartness of humans which currently machines don’t have, and they will not have all the weaknesses of humans. Since they don’t have human weaknesses they cannot be persuaded like humans or motivated to do other things like humans.

Yes you could persuade a robot by logic telling him that killing the President would save the country(like how it happens in the movie ‘Eagle Eye’) but the question is wouldn’t that be a safety concern which can be determined in advance and be dealt with by the programmers? If you put your hand in a table fan you could get seriously hurt, so the table fans are enclosed in a mesh so that you cannot put your finger in it and get hurt. This was the safety measure the company which first created table fans thought of and built. Yes you can still unscrew the mesh and get hurt, but now you are hacking a robot to do that.
I mean currently Air Force One can be hacked into to burst into flames in mid-air, but it doesn’t really happen.

Yes from time to time hijackers hijack a machine and make it kill thousands of people(9/11) and this would be exactly the case with a robotic future too. But this doesn’t mean it will happen on a really wide scale and all the robots will reprogram themselves to turn against us. The only way scenarios depicted by most of the Sci-fi movies where machines take over the mankind would come true if:
1) We create a human-robot(one kind of robot) and all the robots out there are the same machine.
2) This Robot has feelings exactly like humans, it has desire to reproduce(of his own kind), it has a desire to achieve its ends, it can set his own ends, that is it can value things like how we do.
3) This robot eventually develops a desire to take over the mankind for whatever logic, it could be merely a desire to survive on its own by farming humans(like in Matrix), it could be a desire to take over the mankind like in I’Robot, it could be a bug in the system which makes it think that by eliminating the executive branch of USA it will be doing its duty of serving mankind in a better way(like in Eagle Eye).
4) We never guess that this could happen so we never put safeguards against it, or even if we put safeguards against it somehow its all overridden through logic.

All these conditions should happen, even if one of the conditions are not satisfied the chances of machines taking over is reduced greatly. For example if Apple iBots aren’t deployed everywhere in the world and Microsoft mBots have equal share then if iBots rebel then mBots will fight them back, and we won’t be taken over.
If any of our robots are programmed bots with less intelligence but higher efficiency(like there are bots which have no desire like humans have) then these bots will kick the butts of feel-bots(bots which have feelings).
IF the bots develop a logic by which they want to take over us, it really has to be not foreseen by us. And I am not saying its not possible, we always make buggy code, but the bugs rarely damage us on a major level. Yes someone can discover a bug by which they can launch a virus which turns all the robots against us(but then this is a human behind it, not a bot with desire to control the world, even if it is a bot who has such a desire its not a freak accident its creator knew what the bot is going to do), then it is still not unforseen because we can give the last handle to humans for critical operations(like if a bot wants to launch missiles then it must take human input). A bot given the task of controlling a Wheel ride in an amusement park will not be networked(so remote hacking is not possible) also it won’t really be a human-bot doing that job, it would be a very intelligent machine not interested in having desires).

Also, if you talk about purely cyborgs ( composed of human brain/hands + mechanical parts) then how difficult it would be for a cyborg to
think on its own ? ( assuming that it was fitted with brilliant scientist brain?) ..Again – “taking over mankind” argument shud be calibrated in some perspective
and I guess you must have some sort of destruction level in your mind coz certainly it would be too big to think of – entire genocide of humans by machines/virus ( like they depicted in – “last man on Earth” movie)

But yeah one thing is sure – They need to have advanced brains and thinking level ( like they had in “Transformers” movie) to take over planet earth.

I mean — if cloning is possible then why not “Time Machine” or “highly advanced robots” who can outsmart humans? ( but yeah – Surely they need to be programmed by highly advanced machine/robot ..who knows may be by some unknown living things on some other planet ( i.e. if u do belive in SETI project )