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I think it will be possible in the far future to take a single person`s cells, genetically enhance and change them using genetic engineering and synthetic biology using new genes, and put it in a 3d bioprinter in order to create a new person.

3D bioprinting could create a fully grown person instead of an artificial womb, which would grow a fetus and the person would be born as a baby like typical humans. With a bioprinter, the new person could be born as an adult. I think if this technology became possible many people would opt to create fully grown offspring because it would be much cheaper than to raise a baby until adulthood.

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  • $\begingroup$ "do you think x" is a call for opinions. We prefer measurable answers. $\endgroup$ – L.Dutch - Reinstate Monica Feb 14 at 4:03
  • $\begingroup$ I edited my post. $\endgroup$ – Sabrine Crystal Santos Feb 14 at 4:30
  • $\begingroup$ Can you specify what answers should be addressing here? You've given context, now where do you want us to take it? $\endgroup$ – Zxyrra Feb 14 at 4:35
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    $\begingroup$ Are you asking us whether this is possible, or are you asking us what the consequences will be if it is possible? $\endgroup$ – Halfthawed Feb 14 at 4:54
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Bioprinting can't make full humans.

This site has already addressed the feasibility of artificial wombs, and the consensus seems to be that meeting the chemical needs of a developing fetus using a machine is plausible. It will likely always be more expensive than natural birth, but it is definitely plausible.

Bioprinting, on the other hand, can't create a fully-formed human because we are so, so, so complex. It is possible to create sheets of some tissues, like skin, and some organs like the heart are now the subject of research. However, we struggle to integrate basic infrastructure like nerves and blood vessels into the organs we make. This is because 3D printing operates vastly differently than biological development. You can't build a person starting at their feet and adding layers until you reach the top of their head; complex blood vessels need to be interwoven to reach tens of trillions of cells, nerves have to reach every tissue, and half of what you're interacting with needs to be filled with some type of liquid. If you somehow manage to build veins in layers, try keeping bacteria out of them before the immune system is formed.

Building the body one tissue at a time and weaving them together would be a better start, but even that can't produce complex structures like the brain. Adult brains are the result of decades of forging and pruning neural pathways; even if we could safely weave together tens of billions of neurons, we couldn't create anything meaningful. Even if we somehow understood how to make functional brains, what about education? It's notoriously easy to learn new languages as a child because your brain is developing - whereas it gets difficult with age. Would 3D-printed adult brains be able to learn how to be human? Becoming an adult, both emotionally and physically/structurally, is arguably only possible through experiencing adolescence.

Even if you handwave the engineering problems and say it's possible - what about the cost? The only cost of growing a human in an artificial womb is nutrients; biology will form everything on its own. On the other hand, creating an entire human being manually, from scratch, must cost billions.

Perhaps bioprinting will revolutionize healthcare, but it will never allow for reproduction.

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  • $\begingroup$ If an entire organ can be created using bioprinting why could not an entire person be created using the same technology? $\endgroup$ – Sabrine Crystal Santos Feb 17 at 1:14
  • $\begingroup$ @SabrineCrystalSantos Read the answer. we struggle to integrate basic infrastructure like nerves and blood vessels into the organs we make ... one tissue at a time... can't produce complex structures like the brain ... creating an entire human being manually... must cost billions. There's at least three explanations as to why not. $\endgroup$ – Zxyrra Feb 17 at 4:09

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