I experienced a discussion on facebook a few months ago where someone tried to calmly have a discussion, of course it being facebook it failed, but I am interested in the idea, and wanted to see if it can be carried out here calmly, knowing it is potentially of controversy. I first automatically felt negative to the discussion but then I system-2'd it and realised I don't know what the answers might be:

The historic basis of relationships was for procreation and child rearing purposes. In the future I expect that to not be the case. either with designer-babies, or just plenty of non-natural birthing solutions as to make the next generation make-able without needing to go through a regular-family structure.

At that time, the potential for intra-family sexual relations would be possible and not at all whatsoever biologically-risky of causing genetic abnormalities.

How will the world's opinion change about intra-family intra-relations in the future?

Potentially anyone consenting could have sexual encounters with anyone else who is also consenting. However there are existing relationships where one party carries the power - i.e. parent-child, where even if the child is above consenting age (even as far as 10+ years above the age of consent) there can still be power held by the parent over the child.

That was the only point of value before the thread turned to a mush-zone.

Of course there already exist normal relationships with power imbalances. And as was mentioned a few days ago here - an abusive relationship sucks if its from an AI to you, or from a human partner to you.

Any thoughts?

(Edit: inter -> intra, Thanks @Artaxerxes)