Paul Knoepfler warns about the dangers of designer babies. He thinks that “we” need a moratorium on designer babies. I think he is wrong and that the technology holds many promises helping people with terrible diseases and allowing others who know that they have those diseases in their family to have children without fear of passing them on.
People always feared new technologies from photography to telephones and the internet. So people asking to stop technological progress is nothing new, we just should not listen to them, some of his concerns could become problematic though and these need to be addressed.
Ecumenopolises are planet spanning cities in the following video Isaac Arthur explores the concept of this huge structures we all know from science fiction films and books like star wars.
This video explains nicely what transhumanism is: