Twin study suggests rationality and intelligence share the same genetic roots - the study suggests that being irrational, or making illogical choices, might simply be another way of measuring lower intelligence.

[u/mvea]

https://www.psypost.org/twin-study-suggests-rationality-and-intelligence-share-the-same-genetic-roots/

[u/Foolishium]

Pre-Natal genetic engineering probably will be inevitable. Because it will become parental right to conceive a child according to their desire.

However, majoritarian preference are short-sighted. Traits like Autism, ADHD and Gay have evolutionary function that helped humanity to survive to this day.

Majoritarian preference will decrease human genetic diversity and make human less genetically resillient.

If every human have same/similar genetics make up, then they all share same/similiar weakness. This will create a population that can be wiped out by a single threat.

[u/Dracus_ → u/Foolishium]

Traits like Autism, ADHD and Gay have evolutionary function that helped humanity to survive to this day.

This is a bold statement that needs to have some evidence to back it up. It also leans heavily onto the adaptationism paradigm, whereas these traits might be results of an immediate mutation, that will be eliminated this generation. In fact, in modern societies these are likely to be mostly maladaptive in the sense of evolutionary success (the number of descendants). I don't have evidence for this, it's an inference based on the character of these traits (no biological descendants for LGT for obvious reason aside from surrogate pregnancy, difficulties of socializing and finding the mate for the other traits).

I concur that behavioral diversity in general is likely important for our survival (albeit simply survival shouldn't be the only goal, and this modification makes it a better argument), but this puts increasing chances of happiness of both the parents and the child against some higher eugenical goals.

[u/guiltysnark → u/Foolishium]

This presumes that we haven't evolved beyond the utility of evolutionary function... Evolution requires a surviving genetic configuration to reach the successful act of procreation, the theory crediting that achievement to fitness of some kind. But at this point we have so many modes of overriding the effects of natural selection, does any effect even remain? If it persists, is it accelerated because more generic material is kept, or slower than before because the selective functions are far less aggressive?

The ability to manipulate genetics is an eventual outcome of evolution. Does this ability defeat natural selection, or improve upon it, given where we are?