New Earth like Planet Discovered

[Fluffy]

The brain is what makes us smart. In order for high intelligence to be established, you have to have the brain. The human has the most advanced brain in the world, which is why the planet is run by humans. An alien of high intelligence would have to have either that exact same brain, or something so similar that there isn't hardly a difference at all. In order for this, planet circumstances have to be very similar, environment, evolution, and all that good stuff. It all comes down to the brain. Without it, you don't have highly intelligent beings, because that's just not possible...

I must say that this is your best post in this so far. But from what I can tell, it isn't sufficient to prove that it's impossible. I can see the logic behind some of this, but it's still filled with assumptions based on our very limited knowledge of the universe. The main assumption being that life, especially intelligent life, must be similar to that on Earth. While that may be true, and maybe it's very likely to be true, I don't think it'd be reasonable to say that it definitely is true.

For example, we don't really have a good grasp on how exactly the brain works. Do you really think, based on our limited knowledge of even our own brains, that it's reasonable to say that it's impossible that there could be a brain that's extremely different but still works in similar ways?