Live data from Hacker News

How bioelectricity could regrow limbs and organs

news.uchicago.edu

51–60 of 105 posts

Re: How bioelectricity could regrow limbs and organs

#51
post #5

This technology doesn't seem to be limited to existing limbs and organs. After replacing a missing arm you could add a third arm. A man could grow a uterus since he has the X chromosomes and with a transplant that includes Y chromosomes, a woman could grow testes. Parthenogenesis could become a choice. Another head seems possible. The limits are more likely to come from regulation than a reluctance of people to trans…

Start with something simple and wonderful like growing a new set of teeth.

Re: How bioelectricity could regrow limbs and organs

#52
post #35

Earlier quoted context omitted.

No. What's being discussed here has nothing to do with the pseudoscience of chi or chakras.

OMG here we go with the marginalization term "Pseudoscience". Stereotyping things you don't understand doesn't make you a smart person.

Chi and chakras are very well understood to not be science, so "pseudoscience" is a very accurate description.

Re: How bioelectricity could regrow limbs and organs

#53
post #43
post #6

Earlier quoted context omitted.

Yeah, AFAIK Becker's "The Body Electric: Electromagnetism and the Foundation of Life" is pretty much all there was until Michael Levin came along and picked up the torch. IMO it's one of those weird "holes": why so little interest in human tissue regeneration?

Because there’s no immediate and clear plan for a return on the investment due to how speculative things are, private funding is scant. Because we (the USA) are spending most of our money on the insane military complex there is little extra public funding for actually beneficial R&D. Edit: grammar.

The US budget is 6.5T USD for 2022.

The US DOD budget was 753B USD for the same year.

The US Medicare program was 747B USD; with another 45B USD for NIH.

So the US actually spends about equal amounts on military and healthcare, at the federal level — about 11.5% on each.

A better question might be why the US gets so little ROI on its healthcare spending.

Re: How bioelectricity could regrow limbs and organs

#54
...how bioelectricity provides the blueprint for how our bodies are built—and how it could be the future of regenerative medicine.

DNA is the blueprint for how the body builds itself. I wish them well in exploring this and figuring out how to more effectively foster advanced healing of serious damage, but the body already has this info.

/2 cents from a person who no longer has a hole in her lung

Re: How bioelectricity could regrow limbs and organs

#55
post #42
post #27

Earlier quoted context omitted.

This implies that your brain could handle 4 arms. Chances are they would just be dead limbs.

So I wonder how much brain power (if any significant) is being taken up by the uterus during pregnancy.

Well, I don’t know if it’s the brain power or the gray matter pruning that goes on, but my wife was an absolute space cadet for a while during pregnancy and quite a while after. She’d forget almost everything.

Re: How bioelectricity could regrow limbs and organs

#56
post #43
post #6

Earlier quoted context omitted.

Yeah, AFAIK Becker's "The Body Electric: Electromagnetism and the Foundation of Life" is pretty much all there was until Michael Levin came along and picked up the torch. IMO it's one of those weird "holes": why so little interest in human tissue regeneration?

Because there’s no immediate and clear plan for a return on the investment due to how speculative things are, private funding is scant. Because we (the USA) are spending most of our money on the insane military complex there is little extra public funding for actually beneficial R&D. Edit: grammar.

>Because we (the USA) are spending most of our money on the insane military complex there is little extra public funding for actually beneficial R&D

This simply isn't true at all. The US doesn't spend that much money on the military compared to other countries. Go look at federal expenditures; most are for entitlements: social security, medicare, etc.

As a percentage of GDP, US expenditure on the military is nothing unusual, and even a little low compared to many countries like Israel, Russia, probably Saudi Arabia, etc. It only seems huge because the US is huge, and has an enormous GDP, so of course it can afford to spend a lot more than a country like Italy for instance.

As the sibling comment said, look at how much the US spends for healthcare (not just federal expenditures, but total spent in the economy), and then ask why the US gets so little for its money there.

The problem in the US isn't spending money, it's how the money is spent and where it goes. Most of it seems to go into a black hole. Just look at how expensive it is to build anything.

Re: How bioelectricity could regrow limbs and organs

#57
post #43
post #6

Earlier quoted context omitted.

Yeah, AFAIK Becker's "The Body Electric: Electromagnetism and the Foundation of Life" is pretty much all there was until Michael Levin came along and picked up the torch. IMO it's one of those weird "holes": why so little interest in human tissue regeneration?

Because there’s no immediate and clear plan for a return on the investment due to how speculative things are, private funding is scant. Because we (the USA) are spending most of our money on the insane military complex there is little extra public funding for actually beneficial R&D. Edit: grammar.

Inconceivable!

Re: How bioelectricity could regrow limbs and organs

#58
post #43

Earlier quoted context omitted.

Because there’s no immediate and clear plan for a return on the investment due to how speculative things are, private funding is scant. Because we (the USA) are spending most of our money on the insane military complex there is little extra public funding for actually beneficial R&D. Edit: grammar.

The US budget is 6.5T USD for 2022. The US DOD budget was 753B USD for the same year. The US Medicare program was 747B USD; with another 45B USD for NIH. So the US actually spends about equal amounts on military and healthcare, at the federal level — about 11.5% on each. A better question might be why the US gets so little ROI on its healthcare spending.

A much better comparison would be to look at the proportions dedicated to research.

E.g., DARPA vs NIH, not DoD vs Medicare or DoD vs NIH.

Re: How bioelectricity could regrow limbs and organs

#59
post #39

Earlier quoted context omitted.

We're seeing how the west is discovering those "chakras" and unlike the east, where the understanding of this topic is very broad and fuzzy, due to lack of experience in most cases, the west will develop a very narrow, but very sharp knowledge. Pair that with the thick dark cloud of nihilism enveloping the west today, and it's not hard to see where this will end up. Levin seems to have discovered what the east calls…

Can you explain what you mean by "a very narrow, but very sharp knowledge"

It's well captured in the Feynman's quote: "shut up and calculate". When a typical western scientist sees a flatworm regrowing itself from pieces, his mind thinks of the mechanics of this process and little else. Someone with the eastern mindset is going to think about lots of fuzzy abstractions, such as the nature of lifeforce, but will not bother with boring details.

Re: How bioelectricity could regrow limbs and organs

#60
post #43

Earlier quoted context omitted.

Because there’s no immediate and clear plan for a return on the investment due to how speculative things are, private funding is scant. Because we (the USA) are spending most of our money on the insane military complex there is little extra public funding for actually beneficial R&D. Edit: grammar.

The US budget is 6.5T USD for 2022. The US DOD budget was 753B USD for the same year. The US Medicare program was 747B USD; with another 45B USD for NIH. So the US actually spends about equal amounts on military and healthcare, at the federal level — about 11.5% on each. A better question might be why the US gets so little ROI on its healthcare spending.

The number you’re using is deceptive. You’re citing the Dept. of Defense’s (mandatory) budget, as if that is all the funding that goes to the military. It is not. After mandatory spending (DoD mandatory funds that you cite, social security, medicare, Medicare, interest…) about 25% of the budget is left for discretionary spending… BUT, nearly half of discretionary spending is government wages that, surprise surprise, includes military salaries and benefits. Then, a huge portion of the remaining discretionary funds are again allotted to the various military branches and war spending. Discretionary spending more than doubles the actual amount we put towards the military.

https://www.brookings.edu/articles/what-is-discretionary-spe...

Post reply on HN