Time dilation. Outer space intelligent life forms. Do you agree with me?

Question

ok this might get kinda confusing but here it goes.
Lets say that we have 2 intelligent species with the same capabilities and resources in two diferent planets.
So lets suppose that one of planets speed is 1 km per second, and the other planet speed is 200 km per second.
Ok so the species living in the slower planet meets the species living the faster planet in a very very very distant future.
The species that lived in the slower planet would be more advanced than the species that lived in the faster planet, this because of time dilation right?

Answer 1

as mentioned in the previous answer there would have to be a diff in speed of about 30,000 km/s for a noticable time dilation.
now if there was such a diff in velocity, the question is where the planets are they can move at such speeds and not meet till 'a very very very distant future'. 30,000 km/s makes a velocity about 0.1 light years/year. so 100,000 years means 10,000 light years. in that distance the differences in external influences on the planets is going to be greater than the time dilation.
oh and the time dilation for the prevoius mentioned scenario is close to 1/.995, or 5 years per 1000. hardly a meaningfull difference.
so any difference between the planets is likely to be due to a different effect than time dilation

Answer 2

Time dilation effects don't become noticeable until very near the speed of light.

The speed of light = 299 792 458 m / s.

The difference in relative time between 1km/s and 200 km/s is negligible.

Answer 3

The variations in development are so much greater than the time dilation that this is pushing to the extreme.