Average IQ is going to be 85 in a 100 years.

Even if we make it to a generation starship it'll be commandeered by blue haired 70 IQ diversity hires and inhabited by useless idiots who'll go max 2 years before they start burning down the hydroponic farms in protest over how they're not getting enough junk food as part of their daily rations and how that's racist and sexist.