Live data from Hacker News

How bioelectricity could regrow limbs and organs

news.uchicago.edu

71–80 of 105 posts

Re: How bioelectricity could regrow limbs and organs

#71
post #27

Earlier quoted context omitted.

So, in other words, if this technology pans out, this could be possible https://mortalkombat.fandom.com/wiki/Goro

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

Almost certainly wouldn't be an issue. There's a huge amount of plasticity in embodiment. Think about how easily we can control videogame avatars of many physical forms, or adapt ourselves to a musical instrument, or even learn 'pilot' an artificial limb.

Re: How bioelectricity could regrow limbs and organs

#72

There's a fascinating (in my opinion) TED talk about this featuring the same Biologist, with examples of regenerative experiments performed using Flatworms: https://www.youtube.com/watch?v=XheAMrS8Q1c

https://link.springer.com/article/10.1007/s10071-023-01780-3

Re: How bioelectricity could regrow limbs and organs

#73

Earlier quoted context omitted.

>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…

The military budget both in absolute and relative terms is ludicrous. The nations with a more irresponsible budget than the US are mostly state-terror organisations. Which doesn’t mean that the US isn’t one

So you think countries like South Korea, Greece, Kuwait, Columbia, and Singapore are "state-terror organizations"?

https://en.wikipedia.org/wiki/List_of_countries_with_highest...

Re: How bioelectricity could regrow limbs and organs

#74
post #58

Earlier quoted context omitted.

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.

DARPA’s budget was slightly under $4B in 2022 — an order of magnitude smaller than the NIH.

My original comparison was because Medicare and the DOD have their own funding authorities and I didn’t want to sift through their budgets to find it all.

Re: How bioelectricity could regrow limbs and organs

#75
post #60

Earlier quoted context omitted.

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,…

The DOD’s comptroller says you’re wrong — that figure includes both mandatory and discretionary funding authority.

See page 9 and page 14.

https://comptroller.defense.gov/Portals/45/Documents/defbudg...

Re: How bioelectricity could regrow limbs and organs

#76
post #27

Earlier quoted context omitted.

So, in other words, if this technology pans out, this could be possible https://mortalkombat.fandom.com/wiki/Goro

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

Plus all your shirts would need to be tailored.

Re: How bioelectricity could regrow limbs and organs

#77
post #27

Earlier quoted context omitted.

So, in other words, if this technology pans out, this could be possible https://mortalkombat.fandom.com/wiki/Goro

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

Biological systems have an incredible plasticity. That same Michael Levin once used his discoveries to make a tadpole with an eye somewhere near the gut. The eye formed correctly and grew a nerve that connected to the spinal cord. The tadpole was able to see out of that eye. It's definitely a non-stock configuration yet it worked. I'm sure it's much more complicated than having 4 arms.

Re: How bioelectricity could regrow limbs and organs

#78
post #71
post #27

Earlier quoted context omitted.

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

Almost certainly wouldn't be an issue. There's a huge amount of plasticity in embodiment. Think about how easily we can control videogame avatars of many physical forms, or adapt ourselves to a musical instrument, or even learn 'pilot' an artificial limb.

[deleted]

Re: How bioelectricity could regrow limbs and organs

#79
post #27

Earlier quoted context omitted.

So, in other words, if this technology pans out, this could be possible https://mortalkombat.fandom.com/wiki/Goro

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

The just in time for Halloween scenario is they grow back but with Alien Hand Syndrome.

So they're constantly giving you wedgies, making rude gestures to loved ones, writing bad checks, and trying to choke you out.

Post reply on HN