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jpmattia

3,925 karma · joined May 20, 2008

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jpmattia··on Fun ways of deciding authorship order (2016)
The wordpress post is old, and so the author didn't have the chance to include my favorite method:

Every Author as First Author: (pdf) https://arxiv.org/pdf/2304.01393

jpmattia··on Nominal Aphasia: Problems in Name Retrieval
> So far, I've not been able to devise any way to improve such recall

The only way I've found is not intuitive: Extreme health consciousness, both in diet and exercise. I pretty much had to give up alcohol as well, just a couple of glasses of wine and I would experience these weird name/word outages.

jpmattia··on Trump temporarily drops tariffs to 10% for most countries
James Carville in the 90s: “I used to think that if there was reincarnation, I wanted to come back as the president or the pope or as a .400 baseball hitter. But now I would like to come back as the bond market. You can intimidate everybody.”
jpmattia··on Electron band structure in germanium, my ass (2001)
While the post is amusing, somebody needs to say it: Band structure and the theory of solids is some of the most beautiful physics out there. The fact that it has completely altered society as we know it is merely secondary. :)
jpmattia··on Age and cognitive skills: Use it or lose it
> up to the point of General Relativity.

Putting in a plug for MIT OCW 8.962 [1]. I also had this itch, and was able to find time during the pandemic to work through the course (at about 1/2 speed). But true to what others are saying, life intruded for the last few lectures, so still have some items on my todo list. I thought Scott Hughes laid out the math with terrific clarity, with just the right amount of joviality. It is not for everyone, but if you have a suitable background it may turn "scratch an itch" into the obsession that it has done to me.

And to make the obligatory on-topic comment: I'm 61yo. Now get off my lawn.

[1] https://ocw.mit.edu/courses/8-962-general-relativity-spring-...

jpmattia··on The man who spent forty-two years at the Beverly Hills Hotel pool (1993)
I can't be the only person curious about his Fortunescope: https://www.etsy.com/listing/719052863/antique-1935-fortunes...
jpmattia··on Lead and cadmium found in muscle-building protein powders, report says
It sounds like there should be warnings on the raw elements of protein powders, not just the powders, which makes me think (adjusts tinfoil hat to filter proper wavelengths) that the issue raised by the original article is more about FUD and selling their version of protein powder.
jpmattia··on Lead and cadmium found in muscle-building protein powders, report says
Same question as in the other comment: Are warnings issued about the protein powders but not the original rice the powder is made from?
jpmattia··on I deleted my social media accounts
I like communicating with friends, old and new. It's not hard to eliminate the cruft by using chrome extensions and filtering only by friends' posts, ie https://www.facebook.com/?filter=friends

So again, it strikes me as a huge opportunity, especially for someone who just does the basics.

jpmattia··on Lead and cadmium found in muscle-building protein powders, report says
So is the rice itself also high in arsenic/cadmium? ie, are people issuing warnings about the protein powders but not the original material the powder is made from?
jpmattia··on I deleted my social media accounts
The right-turns on FB and Twitter make for big openings in the space. It strikes me as quite an opportunity to eat FB's lunch, just as BlueSky has been eating Twitter's lunch.
jpmattia··on Lead and cadmium found in muscle-building protein powders, report says
It raises the question: Where are things like arsenic and cadmium coming from? Is it in the brown rice to begin with? If so, why?
jpmattia··on Scientists uncover how the brain washes itself during sleep
And after a while, the system get bad enough that fsck starts failing regularly.

Really poor design.

jpmattia··on LA wildfires force thousands to evacuate, NASA JPL closed
One source is the news stations here in LA, eg https://www.nbclosangeles.com/news/california-wildfires/pali...
jpmattia··on The Influence of Bell Labs
> It was not exactly a fun place to work.

I couldn't disagree more, but perhaps the time I was there (late 90s) was different.

jpmattia··on The Influence of Bell Labs
> and the other co-inventor of the integrated circuit was Fairchild Semiconductor, which as far as I can tell didn’t operate anything like a basic research lab.

Kind of a strange statement. Fairchild took the "traitorous eight" from Shockley Semiconductor, which was founded by William Shockley, who famously co-invented the transistor at Bell Labs (and who named the "traitorous eight" as such.)

So while Fairchild "didn’t operate anything like a basic research lab", its co-invention of the IC was not unrelated to having a large amount of DNA from Bell Labs.

jpmattia··on Scientific American's departing editor and the politicization of science
> And plenty of medical experts get the Monty Hall problem wrong.

Then they're not experts on prob and stats in medicine, and you shouldn't choose them to guide policy making when prob and stats in medicine are relevant. The alternative is to choose those who aren't experts in prob and stats in medicine, which results in policy bred from ignorance of the relevant math and science.

Choosing people who are ignorant of the relevant math and science over those who are knowledgeable is certainly one way to make policy, and it seems that is what folks want, so I guess we'll see how well that it works out.

jpmattia··on Scientific American's departing editor and the politicization of science
> That is a political decision, and it is perfectly reasonable to dispute it.

"Political decision" as a euphemism for allowing non-experts to decide how to minimize deaths? The same non-experts who couldn't even get the Monty Hall problem right, let alone the complexity of medical probability and statistics of [false | true] [positives | negatives] in Bayesian scenarios?

Good luck with that.

jpmattia··on Scientific American's departing editor and the politicization of science
> Challenging scientific conclusions should be encouraged not cancelled.

Vaccines are on the docket for cancellation, which to be fair, will last only as long as a swath of the population sees their kids incapacitated by some completely preventable virus infection. But do we really have to go through an epidemic (again!) to understand that the science of vaccines is solid?

There is such a thing as settled science.

There is also such a thing as people too uneducated and non-expert to understand what science is settled.

There should be such a thing as not listening to non-experts about settled science.

jpmattia··on Moderates Should Vote for Harris
Thanks for speaking out, Paul.
jpmattia··on Show HN: A website for comparing protein powder prices
Maybe just me, but I'd like a column (and checkbox on the left) about packaging. I don't know why protein powders require plastic cannisters, and it would seem to me that they are well-suited to something more environmentally friendly, but for some reason so many of them want to use plastic.

Otherwise: A nice website!

jpmattia··on Using AI to fight insurance claim denials
The subheading of the article is "Using AI to fight insurance claim denials", and her site is here: https://fighthealthinsurance.com/
jpmattia··on An approach to the fundamental theory of physics
I think the acknowledgements in your second link are interesting:

> I thank Stephen Wolfram for an enjoyable conversation about this review;

jpmattia··on Launch HN: Undermind (YC S24) – AI agent for discovering scientific papers
I did see that, and maybe I should expand my comment. From the perspective of someone doing long-term research: Undermind is a startup and is subject to the vagaries of VC funding. Currently, AI is in fashion among VCs, but my guess is that the fashion will be shorter lasting than the usefulness of the search results. So having tried out the product and finding a nice literature list in a relatively new area for me, my first instinct was to store it among my org files because the probability that your company will disappear (or severely degraded upon acquisition) is high.

Anyway, I do not mean to detract from the accomplishment -- and I liked the product! So I hope you take the above feedback/nitpicking in the spirit it is intended.

jpmattia··on Launch HN: Undermind (YC S24) – AI agent for discovering scientific papers
I was looking for a way to save the result page locally (ie offline). Maybe I need more coffee, but it did not look possible. So I'd add the ability to save the result (or at least make the button prominent).

But the fact I wanted to save a result is a good sign. Nice work!

jpmattia··on Launch HN: Undermind (YC S24) – AI agent for discovering scientific papers
> "manually dig through papers on Google Scholar for hours."

The old dinosaurs on HN are snickering about the word "manual" here, having blown days pawing through the library stacks.

jpmattia··on Show HN: Markdown HN profiles at {user}.at.hn
Tastes around here definitely vary. I prefer curvy monitors with big CPUs.
jpmattia··on Can you pump water without any electricity?
Tangentially related: My wife's grandparents lived on a farm that has been a working family farm for over 200 years. The ram pump was quite impressive in its day (pre-electricity); It meant not having to haul water from the spring or creek manually.

It was working and still the source of water for the farm house until they passed away (about a decade ago). There was always the rhythm of the ram in the background.

jpmattia··on Things the guys who stole my phone have texted me to try to get me to unlock it
> As long as I didn’t remove the phone from my Apple account or the Find My app, the phone was essentially bricked to anyone without the passcode and my iCloud password — unusable by the thieves, or the fences who I assume bought it from them.

I did not know this, and I wish it were better publicized.

jpmattia··on Google Search Is Now a Giant Hallucination
My favorite so far: https://mastodon.social/@JoeUchill/112493317168967705

> Can I use gasoline to cook spaghetti faster?

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