In the future of space, the space empire bans transhumanism. The real reason for this is that it's hard to write things from a non-human perspective, but what are good in-universe reasons?
The last AI/alien/civil war suborned many people through their implants and other changes that normal humans would not have as vulnerabilities.
I hope they ban transexuals too.
>>50046711
There are communicable diseases that can be carried by X, Y, and B species, it's only harmful to Y and B, and species Z and D cannot carry or transmit it. Bioterrorist groups made of X species who are opposed to Bs would make themselves look like species Z or D with surgery and post-natal gene manipulation to avoid being checked for the disease.
Checking everyone for the diseases would be costly, ineffective, and would delay travel across planets by months or even years. Thus the simplest solution was to totally outlaw someone representing them as a species they were not, and DNA analysis of someone's species can be done as easily as a breathalyzer test in our time.
>>50046711
>but what are good in-universe reasons?
The space Emperor got sick of whiny transhumanist faggots shitting up the place so purged them all.
Someone saw the shit people could think of with eclipse phase and banned it before anyone got even close.
>>50046711
Fear of being obsolete.