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The ability to regrow body parts is dormant in mammals, not lost

sciencedaily.com

61–70 of 75 posts

Re: The ability to regrow body parts is dormant in mammals, not lost

#61

Earlier quoted context omitted.

You shouldn't really sharpen kitchen knifes too sharp. And even if they're not super razor sharp (cutting a finger with no resistance), you should still warn people new to your kitchen or even family members/regular users right after each re-sharpening. Additionally, too low angle will make the knife very suspectible to blunting and/or require constant drawing on the sharpening steel¹. Unless you have super high qual…

> You shouldn't really sharpen kitchen knifes too sharp There is a sentence among cooks: "only with a stub/butt knife you cut yourself" - isnt this true anymore?

It's totally true, and more so true in a slaughterhouse. Blunt knifes cause strain injuries on joints, and make people use much more force than necessary, which comes at a loss of precision. And then it turns out, that with enough force, a semi-blunt knife will still cut through a kevlar anti-cut glove and hit fingers.

BUT!, once the knife is sharp enough for a job, and I mean for comfortable work, not just barely enough, then it's enough.

Giving somebody who never held a sharp knife in their life a knife that is so sharp it will cut their fingers without them feeling it (or even close to that sharp) is like telling somebody to run a coding agent on their system and not in a VM. Things can get bad really fast.

Most people (at least in central Poland where I come from) used semi blunt knives* for everything. Some would have a household knife sharpener or maybe even low quality sharpening steel like the ones you get in a knives set. Maybe they or their grandma had a butcher in the family. They will have nice sharp knives that can cut tomatoes without crushing them.

But with a knife that is sufficiently thin, a throwaway leather belt, a little skill and an hour or more of time, you can get a mirror-like polished blade that is so sharp you can amputate limbs in seconds. Just need to go through the joint at a correct angle.

That's how our grandfathers shaved.

* just realized I was typing plural for knives wrong - with an 'f'

Re: The ability to regrow body parts is dormant in mammals, not lost

#63

Earlier quoted context omitted.

No, the end of your finger just can grow back. https://www.npr.org/sections/health-shots/2013/06/10/1903854... Dude's brother had him throw his product on the finger as it did so, definitely an astute marketing trick. https://www.theguardian.com/science/2008/may/01/finger.claim

"I don't know how it works, so it must be fake news." To be fair, the person being skeptical is just a surgeon, this is not a peer-reviewed study or anything actually scientific. Your NPR link even shows that scientists realize there are still unknowns: > "We think that nail stem cells may a have a special function to induce the whole regeneration process, including nerve attraction and growth of the bone," Ito say.…

If it worked on humans 13 years ago, then by now it would have worked on a human who was not sibling to the inventor, in a way not essentially identical to life without it.

Re: The ability to regrow body parts is dormant in mammals, not lost

#64
post #56
post #41

Earlier quoted context omitted.

What can be asserted without evidence can be dismissed without evidence. There was no Jesus who performed miracles of healing

> What can be asserted without evidence can be dismissed without evidence What’s your evidence for this claim?

Logic. Prove I didn’t eat a peanut just now; good luck.

Re: The ability to regrow body parts is dormant in mammals, not lost

#65
post #11

Retina is a good example of this. Zebrafish can regrow damaged retina, but while mammals have the same stem cells (Muller glia), they dont repair the retina, but form scar tissue. There is a lot of research and I think they have managed to modify rat genome, so that their retina has showns some repair abilities. The problem is that it often causes tumors. I have other retina permanently damaged, and suffer from doubl…

Ah, I was wondering the evolutionary reason why those genes would have gone dormant. Cancer is a sensible answer.

Dinosaur Predation damage? If you life fast, get eaten young, repairs are a waste.

Re: The ability to regrow body parts is dormant in mammals, not lost

#66
post #41

Earlier quoted context omitted.

What can be asserted without evidence can be dismissed without evidence. There was no Jesus who performed miracles of healing

even the Jews of the time that did not believe or follow Jesus wrote that he performed signs. They claimed it was sorcery. in Folio 43a of Tractate Sanhedrin of the Babylonian Talmud as follows: ‘It is taught: On the eve of Passover they hung Yeshu and the crier went forth for forty days beforehand declaring that "[Yeshu] is going to be stoned for practicing witchcraft, for enticing and leading Israel astray.”’ The r…

They also have countless records proving hundreds of thousands of women were witches, with ironclad proofs such as “if we stab them they scream so they must be witches, off to the pire” or “throw them bound in the water, if they float it means they’re evil because water (baptism) rejects them so they’re witches -> burn.”

Re: The ability to regrow body parts is dormant in mammals, not lost

#67
post #39

It's just hidden by a feature flag. (Probably for a good reason)

tbh I think it's probably just commented out (and is about as likely to still work as any other commented-out code)

Methyllated out....

Re: The ability to regrow body parts is dormant in mammals, not lost

#68

Earlier quoted context omitted.

How do you know?

I think to claim that 2000 years ago there was one person who performed miracles and/or healed people that nobody else could, with no actual evidence it was done and nobody else has been able to do it since, you need a better response to someone questioning it than “oh were you there? prove it didn’t happen.”

He's not unique though. Quite a few people are on record for performing miracles in front of large audiences. Seemed like it was all the rage around this time period.

Vespasian apparently healed blind people in Alexandria. Apollonius of Tyana had a very colourful life performing all kinds of magic. Honi the Circle Maker was bringing the rain over in Judea.

Must've been something in the water other than lead!

Re: The ability to regrow body parts is dormant in mammals, not lost

#69
post #40

Earlier quoted context omitted.

In the whole Christian tradition, God/Jesus generally does not go for organ or limb regeneration. Two counter examples are a healed ear in Luke (but this may well have been resumption of hearing? details are a little light), and then a single Spanish example in the 1600s. For His own mysterious reasons, He simply doesn’t go in for that stuff, however much intercessionary prayer ends up in His inbox.

Why does god hate amputees?

Difficult to pray without 2 hands.

Re: The ability to regrow body parts is dormant in mammals, not lost

#70

Not a single mention of the work on limb regeneration by Professor Michael Levin's lab at Tufts? https://as.tufts.edu/biology/tufts-center-regenerative-and-d...

He builds (albeit nothing really meaningful) on top of the work of Robert O. Becker, I highly suggest you read his book "The Body Electric".
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