"This is actually quite wrong"
You do not know what you are talking about.
"The more we know, the faster we change. Mankind's development rate has basically been standing still for thousands of years, but just think how much it has been changing in the last 100 years. And it'll just go faster. Just because our physical appearance will take some more time (but we might integrate ourselves with machines etc.), doesn't mean that we aren't changing psychologically relatively fast. "
We improve techonologically, but our GENES have remained virtually unchanged for the thouands of years. The physical structure of our brain is SOLEY determined by our genes.
Society does change, human nature does not.
"Just to give an idea to consider: I read somewhere that just 100 years afo the IQ of an average person would be far lower than the IQ of a person of today"
That is because IQ and intelligence in general is very suseptible to mal-nutrition. 100 years ago nutrition was poor, malnutrition was rife hence the average IQ was substancially lower.
"likely due to the amounts of information that is available today"
Bzzzt, wrong answer. It's cause we have food.
"Fear is an advantage for a primitive animal living in a primitive environment, not for an human being living in a civilized society"
Nonsense again, fear is an advantage to all animals without it you are more-likely to do incredably dangerous things and hence more likely to die.
"We are not discussing physical strenght here. I've never heard of a healthy young person dying of fear, but I do suspect/know that animals can do so. "
Strength? When people "die of fear" they are actually dieing of a heart attack, it can happen to humans and animals. It is fairly rare in young mammals whether human or not human.
". We humans still have fear, basically for no reason, that's why I believe that it will disappear in the future"
What drivel, EVEN IF fear did not convey an advantage (which it does) it would take HUNDREDS OF THOUSANDS of years for humans to lose it.
"The same theory counts for other emotions. "
Emotions including fear are HUGELY beneficial to the human race, they aren't just advantages they are so key that without them humanity would probably die out.
"Emotions can be seen as internal laws in the individual, in the same way that one would set up some sort of internal laws in an artificial neural net"
........ emotions are not laws, they are drives.
"In order to rationally advance, the neural net must adapt to the truth of the world outside, instead of creating internal lies (religions etc.). "
What? Advance? And what prey does advance mean? And internal lies? As opposed to what? External ones!?
"And as far as I know, when understanding the physical laws that everything follows (including oneself), there are no room for emotions. "
What? Of course there is room for emotions when understanding the physical laws!!! What a rediculous statement, what do you think Einstein, Newton, Darwin were all robots!?
"In todays society, mankind would destroy itself without love, sympathy etc. agreed. I was however just speculating about the future - by then mankind/some other life might be able to live without emotions. "
I cannot invisage any way that mankind or any other form of complex life could exist without emotions, furthermore man-kind would could never evolve into a species that existed without emotions even if such a species were possible (which it so isn't anyway)
"But they're all seeking answers, most of them in their own dream-worldsmaybe"
"I consider emotions to be irrational beliefs"
A rediculous statement, they are not beliefs at all, since they do not say anything about the nature of the universe.
"just like religons are lies"
Religion makes specific claims about the nature of the universe which are false, emotions make no claims whatsoever.
"for example love or happiness, and you should realize that they doesn't exist in the physical world outside either."
They don't exist in the physical world? Of course they don't exist in the physical world! They aren't objects you know! They are sensations, that's all.