Grand Idea (Score 1)

The idea is very very grand. Do we have alternatives to this plan. I don't think it is very vice to send a human colony for 7500 years(300 generations) floating in the space looking for a place to live(We are just 5000 years now). This colony will advance knowledge, technology etc and grow during the journy. Can we predetermine evolution of this colony over 7500 years. As an alternative, attempting superluminous travel is much more appealing than the space cylinder.