What do you guys think of UFO's?

[Your Computer]

Well actually no. The basic substance of EVERY organism is water H2O. Water above 373 Kelvin becomes gas and bellow 273 Kelvin it becomes ice. So there is not any organism who can live in a temperature higher than 373 Kelvin and not in a temperature bellow 173 Kelvin(that's because some organisms are more resistant). Also half of the planets in our solar systems are made by gas (have no ground like Earth) and have strong gravitational forces. The other planets have way too high or way too low temperatures (you can confirm that in wikipedia). There is no possible way an alien can live in a planet in our solar system. I cannot deny that there could be aliens light years away from us,but there is no point. The max speed limit in nature is the speed of light. So far so good, that means even if they were travelling nearly with the speed of light it would still take them several years to come here on earth and even more years to come back to their planet. Let's also calculate the possibility of choosing another direction to explore on the universe (not the one leading to our planet which is on of the many possible directions) and the possibility of reaching our solar system.

Given all that. The possibility of us seeing an alien is 0,00000000000001%

Even though i said the very existence of an alien visitor has a good chance of contradicting a lot of what we know about physics and therefore biology, from our discussion on what time is i know that you have difficulty accepting that our knowledge of physics and biology could be denied. What good is probability if the very existence of a specific aircraft creates implications that would deny the assumptions used to measure said probability?

And how can you say an alien would have difficulty living in our solar system? If i were to assume that an alien is indeed the kind of organism that depends on water, wouldn't that mean that we, all living organisms on planet Earth, would all the more cease to exist? Would it be any wonder why an alien from deep outerspace that enters our solar system would ever seek to enter the Earth's atmosphere?