Sorry, but the story is so full of holes. Organics regenerate tissue and age. According to the Institute the following is true:
1. Gen3 doesn't need to sleep.
2. Gen3 doesn't need to eat.
3. Gen3 doesn't age.
With the above, Gen3 is not classified as organic species.
"The Gen 3 synths are the perfect workforce because they don’t need to eat or sleep, they are as capable as regular laborers (if not more), they don't catch diseases (great for cramped quarters), and the Institute can produce them as needed almost instantly. "
The story is basically lame, and Gen3 wouldn't even be considered organic species since it doesn't need to eat or sleep which the question must be asked: " How does it regenerate tissue?" They also can't reproduce organically for the simple reason of not being able to regenerate tissue organically.
âWait what. Don't need to eat? I can't remember ever hearding/reading that, where do you have this from?
If real, I personally would disregard that. Maybe handwave it like: yeah the guy who said it was full of s***, or actually meant Gen2.
Obviously they would have to eat. The alternative would be some sort of an integrated nuclear reactor, which people definitely would notice.
I'd even go so far and say that Gen1 and Gen2 CAN eat at least. They have something which looks like a gut. Maybe: in a pinch, they can utilize organic matter for power, but it's extremely inefficient. Though on the up side, they can't get sick or get cancer from radioactive dog food.
I don't see much issue in 1 and 3. Definitely not in 1. It seems to be a limitation of real, organic brains, but I think it's not too much of a stretch to say: yeah the institute figured that out. Lol, maybe synths do half-brain sleep, like dolphins.
For aging, I mostly understood it like, they don't age like humans. Again, a reasonable assumtion imo to say that the Institute at least tried to make synth cells technically immortal. Like, prevent their telomeres from shortening and add every kind of tumor prevention which they could think of.
But in general, I find it believable that a synth would never get gray hair or wrinkles. However, other issues might occur. Like, arthritis, and any other mechanical deterioration which the selfrepair might be insufficient to fix. Maybe hair loss, too, if destroyed follicles cannot be regenerated.
As for not reproducing, I'd say, the Institute probably could make it work, but didn't on purpose. However, such children would be 100% human.
The questions are, can a female synth body even do the necessary changes for a full pregnancy without breaking (synths can't put on weight if they eat too much sweets either), and, are the genetic tweaks to human tissue which synths a built from safe to be put into a human embryo?