is it possible human intelligence came from the asteroid that killed the dinosaurs. of course with evolution.?

No.

It must have been a cheap asteroid if it did. I would not exactly call human intelligence much to boast about, and to think that an asteroid crossed the immensity of the universe just to give rise to "Big Brother" seems like a huge waste.

Bacteria or any form of life cannot survive in an asteroid during the millions if not billions of years necessary for interstellar travel. Complex organic molecules are degraded by the huge doses of cosmic radiation that they would absorb while being in deep space for millions of years. Radiation damage is cumulative and totally disruptive over long periods of time.

The ancestors of all hominids (including us) can be traced back to small rodent-like creatures that already existed on Earth long before the dinosaurs went extinct through whatever process.

Cheers!

Small meteorite/asteroid fragments can survive to Earth without total destruction, so that if there is a chance that life can be seeded from space material, it would be with these. The 10 km wide Chixculub impactor exploded with the energy of tens of thousands of nuclear bombs, and all of its material would have been transformed by the heat, which would have rivalled the interior of the sun.

No chance.

Also, the progenitors of the mammalian lines that eventually led to humans were already scrurrying around in the undergrowth while dinosaurs lived. Small mammalians survived the impact and over 65 millions years evolved into all the forms of mammals we know of including primates and eventually mankind.

The asteroid did not kill the dinosaurs - the last large dinosaurs were gone before it ever hit and all evidence found since denies that the asteroid was big enough to produce the effect that Alvarez claimed for it - even if Physicist Alvarez sneers at paleontologists as being pathetic scientists.

There was certainly a large asteroid, but the iridium could also come from the violent volcanism that preceded it and the die off of species includes species that would not have been affected.

Its possible but not likely.

There was already a thriving living ecosystem on Earth 65 million years ago.

With the end of the big reptiles, the mammals that because humans had a chance to fill all kinds of niches in the world and evolve.

Without that asteroid, its possible humans never would have evolved. But organisms on that asteroid would not have been necessary.

Panspermia is one of the possible origins of life on Earth but would not be responsible for the development of mammals after the extinction of the dinosaur, what did encourage the development of mammals was not being eaten by dinosaurs.

I dont think single celled life forms could have evolved fast enough to make a different in "human intelligence" maybe play a role? Its all possible, but not very probable.

Nah, asteroid couldn't sustain life.