He’s stuck in the past. In the timeframe of Mars colonization, “human” consciousness (really the successor to it) will be hosted in different body plans that will thrive on Mars.
Interesting idea... can you elaborate or list some references where one can read more about this?
Not super aware of literature on this. Maybe transhumanism and future-looking AI stuff (not current AI challenges). It’s clear if you think about it. I don’t think the people who are aware of this are talking about it much yet, because it would freak most people out a bit too much. Note that Elon Musk does not talk so much lately about spreading humans through the solar system... he talks about spreading consciousness.