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Small-Scale Question Sunday for July 26, 2026

Do you have a dumb question that you're kind of embarrassed to ask in the main thread? Is there something you're just not sure about?

This is your opportunity to ask questions. No question too simple or too silly.

Culture war topics are accepted, and proposals for a better intro post are appreciated.

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What happened to Neuralink? I recall them moving to human trials a few years back, but there have been no news since. Did it turn out to be harmful to the patients?

Just like how there was a massive moral panic about human cloning, and then the second it became possible there was sudden total radio silence. :^) I’m sure they aren’t doing anything in secret though.

Well, the lunatic fringe seem to be interested. Nutjob more money than sense Bryan Johnson is claiming he has a clone of himself for, basically, spare parts. I very much doubt this, though I am sure there are unscrupulous medical researchers perfectly happy to promise any Mr. Moneybags they'll get him whatever he wants, here's my bank account number, thank you.

Apparently it turns out that Mr. "I want to live forever" has a genuine medical problem of some nature, so of course he immediately leaps to "clone myself and use the resulting product as a guinea pig for treatments-cum-spare parts repository".

I am very nearly sorry for him, except that this is too damn much like all the classical Greek plays about hubris, plus at least he doesn't seem to actually be cloning a foetus, he's just having adult stem cells created:

The immortality influencer shared in an X update that he has a “baby” version of himself growing in a petri dish that he says will allow him to become his “own blood boy” — doesn’t he already have a son who does that for him? — and potentially even “grow organs for transplantation.”

“This may be scary to some people… a dystopian future,” Johnson wrote. “But, for others, they will see it as the inevitable future of health.”

In case this is all starting to sound like the grim sci-fi plot of a certain Michael Bay movie or Kazuo Ishiguro novel, it’s not a literal, living breathing clone. (Although by posting an infamous picture of himself edited to look like a baby, Johnson’s certainly playing into that impression.)

Instead, Johnson’s created his own pluripotent stem cells. These stem cells can self-renew and develop into any type of cell in the body, making them invaluable for repairing damaged tissue.

Where Johnson’s claims of cloning himself as a “newborn” come in is the fact that these highly versatile stem cells normally only exist when we’re still an embryo. But in recent decades scientists have developed techniques to reprogram regular adult cells into an embryonic pluripotent state, which are called induced pluripotent stem cells.

Johnson is confident that by having his own store of stem cells on hand he can “rebuild” his body, repairing everything from damaged lungs to eyesight.

“This technology gives us a path to reverse aging,” he declares.

If Johnson really was trying to grow a clone baby to full term, I think there's legal precedent with saviour babies where courts have permitted parents to implant embryos in order to obtain transplants for an already existing sick child. I don't like that, since the second child is explicitly only brought into being for spare parts (the parents didn't plan on having more children until their only child got sick) but it's legal. So Johnson probably could successfully argue he needs this saviour baby:

A savior baby, savior sibling, or donor baby is a child who is conceived in order to provide a stem cell, bone marrow, or other transplant to a sibling that is affected with a fatal disease, such as cancer or Fanconi anemia, that can best be treated by hematopoietic stem cell, or other transplant

If Johnson could get such a baby, would he be allowed to treat it as a guinea pig etc. or would he be obligated legally to only get the stem cell transplants and then raise the child as offspring (and not "Daddy needs a kidney, Daddy needs a lobe of your liver, Daddy needs your heart")?

And this, children, is why the Catholic Church is no-no on such tech because we hate progress and science and want everyone to suffer.