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The youngest was born in 2019, the same year he was incarcerated (April 2019). Pregnancy lasts 9 months, so even if the child were born in early 2020, there would be no reason to assume infidelity.


I wasn't assuming infedlity, I could have been more clear there. I really was just curious on timing how none of his children could have met him before he was imprisoned.


I'm a bit worried that most of the links on https://www.datomic.com/ are broken.


Any one in particular? I just clicked through some of them and they all worked for me except for one.

From https://www.datomic.com/ -> "Getting Started" points to the wrong https://docs.datomic.com/operation/datomic-overview.html instead of the correct https://docs.datomic.com/datomic-overview.html


I think we just fixed that one. Sorry for the hiccups!


https://docs.datomic.com/overview/storage.html at least (Linked from "Cassandra and DynamoDB" in the article)


He admitted to lying about it? Do you have a source for that? I couldn't find anything.


I was at Google when that happened, and had some inside sources (ie gossip from the guys who interviewed him, who said they didn't even ask any tree questions, and memegen).

I tried to find some outside sources, but nothing about Howell admitting his 'artistic license' outright. So take my fallible memory with a large pinch of salt.

See https://news.ycombinator.com/item?id=15713801 for some discussion, and to see how 'invert a binary tree' wasn't even an established term that anyone at Google would have used.


> "Debunking the Myth of the Young Entrepreneur"

There might be others, but this one is clear and to the point:

The Average Age of a Successful Startup Founder Is 45

https://hbr.org/2018/07/research-the-average-age-of-a-succes...


> He is critical of string theory on the grounds that it lacks testable predictions and is promoted with public money despite its failures so far,[1] and has authored both scientific papers and popular polemics on this topic. His writings claim that excessive media attention and funding of this one particular mainstream endeavour, which he considers speculative, risks undermining public faith in the freedom of scientific research. His moderated weblog on string theory and other topics is titled "Not Even Wrong", a derogatory term for scientifically useless arguments coined by Wolfgang Pauli.

https://en.wikipedia.org/wiki/Peter_Woit#Criticism_of_string...


I'm sure he is expressing a valid principle. By funding one area excessively, you can soon build up reams of scientific literature and interest, but this area needs have nothing or little to do with genuine scientific interest. Funding determines the interest. It's all about money unfortunately, even science.


I had the same feeling doing a phd two years ago. I think there is an unpopular opinion in science about the limits of what we can look at and what is required to achieve that. My conclusion was that the requirements are an economy of infinite growth and a society based on consumption. I did a parallel in my mind between the idea that "knowledge will always grow" and "economy will always grow". The limits are heavily related to social stability/agreement, and the tools we can have given the money(=social and environmental)/physical constraints.

I have the opinion that the FCC is the example of such bias: we don't really know what to look for, but we (the scientific community) have to survive so we'll build a political argument to keep getting funds.

I think the proposal was during a severe heatwave, and I also though "where is the social goal in that science? What does it will bring to society? Do we really need to know that far those things?". I think it's at this moment that I started loosing motivation too.


What is he in favor of? He seems to be criticizing both further experiments in string theory due to being not even wrong, and further experiments with the standard model, since it's either expensive or not getting anywhere. (I'm not a physicist and understand very little.)


> What is he in favor of?

See the category "Euclidean Twistor Unification" in his blog:

> https://www.math.columbia.edu/~woit/wordpress/?cat=31


It's not necessary to be in favor of anything, in order to criticize what's already out there. You can point out fatal flaws in an idea without needing to have an alternative in mind.

Woit himself is working (pretty casually to my eyes) on some mathematical reformulations of the Standard Model. He's not advocating aggressively for these ideas, and I'm pretty sure if you asked him, he'd say there's no evidence that any one idea should dominate the research landscape the way string theory did. None of what exists out there is particularly compelling. (This is one of the reasons people worked so much on strings. It's the best of a bad lot.)


- "...and is promoted with public money despite its failures..."

The amusing thing for me* is this is just coffee budgets for pen-and-paper theorists. What they say about academic disputes: the lower the stakes, the more intense the politics.

*(Observing from a safe distance!)


Not a physicist, just a fan.

It’s not just coffee and blackboards and hoarded Japanese chalk: the goalpost slalom around supersymmetry drives discussions about what colliders to build and how to operate them [1]. Before scalar field excitation at 125 GeV it was predicted by many that the power and luminosity of that run would show weak bosonic superpartners in the first run. With Higgs at 125 GeV it gets really tortured as an argument.

This is also the subtext with the really aggressive public branding of “dark matter”, when it should really be called something like “large scale apparent gravitational anomaly” or some dry thing like that, it’s not an MCU franchise: positing a bunch of mass that has none of the other properties of matter is a perfectly fine line of inquiry, but the verbal capitalization of Matter is because weakly-interacting massive particles are another way to argue that maybe, just maybe maybe, this is indirect evidence for supersymmetry.

But most of all the damage is in attacking the definition of science: if you envelope-math metastable vacua consistent with compactified Calabai-Yau dimensions at (last I checked) order of 10^250 what you’re left with is “it’s strong anthropic, there’s no explanation”, which is exactly where Susskind and that lot have ended up.

It’s time for these people to retire.

[1] https://arxiv.org/pdf/1804.08642.pdf


> hoarded Japanese chalk

What a rabbit hole this turned out to be...

That was an enjoyable 30 minutes. Thank you.



And for the audience here on HN:

https://news.ycombinator.com/item?id=9723202 ("Mathematicians Are Hoarding a Type of Japanese Chalk", 109 comments)

https://news.ycombinator.com/item?id=19718287 ("Mathematicians are hoarding a type of Japanese chalk (2015)", 123 comments)

https://news.ycombinator.com/item?id=20237878 ("The Chalk Market: Where Mathematicians Go to Get the Good Stuf", 118 comments)

https://news.ycombinator.com/item?id=9770017 ("Hagoromo president explains why he closed down his beloved chalk business", 110 comments)


> https://news.ycombinator.com/item?id=20237878 ("The Chalk Market: Where Mathematicians Go to Get the Good Stuf", 118 comments)

All the comments here attributing Japan's ability to have a chalk factory to basically Orientalist culture reasons are disappointing.

(In most of the reasons Japan and America are different here, America is the weird place, not Japan.)


There's also a hidden component in these budget calculations: it is hard for people doing more "traditional" physics to find tenured positions, since many faculty hires went to string theory. So the salary that went to string theorists at the expense of other subareas of physics is quite a large hidden component. Crushed academic ambition is as real-world as it gets, since it involves years of extremely hard toil, wasted.


Totally wild assertion. Most physics departments in the world have only one or two theorists and most of them are not in string theory. And most young physicists don't have the inclination to pursue string theory (even if they had the capability, which many do not).


Taking criticism of string theory hogging all the budget as "it's literally taking over the entirety of physics budgets" instead of "in the field of fundamental high-energy physics, there's no budget left over for alternative ideas to be developed to a similarly detailed level" is strawmanning.


This is just false, string theory only competes in the theoretical physics sub-area; condensed matter, astrophysics, lasers, all that stuff have their own pots of money.


True or false, that's an assertion. Does anyone have any stats so that those outside the field (mostly taxpayers?) can assess all of this?


That research budgets are split by subjects many times before arriving to a node where "string theory" is a possible leaf is not a controversial statement, it is reflected in basically all budget documents you will find.

For example, string theory funded by the NSF that "steals" money from laser research is plausibly only found in the "elementary particle physics - theory" program, which is part of the Physics division, which is part of the Mathematical and Physical Sciences Directorate.

You can find all NFS awards in the physics division, so about one step above where string theory could plausibly show up here: https://tableau.external.nsf.gov/views/NSFbyNumbers/Details?...

sadly the page is pretty shit so the filter selection is probably reset, and they don't label by division program so you'll have to mouse over each one and categorise yourself. As a guide to how much work it is, there was 350 awards in the physics division and about 30 of those in the theory program.


> The amusing thing for me* is this is just coffee budgets for pen-and-paper theorists

Unfortunately not. From his website [0], the extent of the grant funding involved is much more than just coffee budget:

> The Black Hole Initiative that features this on its website: $16 million from the Templeton Foundation, $3.6 million from the Moore Foundation. > The Simons Collaboration on Celestial Holography: $8 million from the Simons Foundation. > NSF Grant: $400,000 from the NSF. > DOE Grant: $3.5 million from the DOE.

This kind of money could fund a whole lot of other theory. Hell, it even could fund a lot of experiments (albeit not in high energy physics).

[0] https://www.math.columbia.edu/~woit/wordpress/?p=13770


In my view, those are very trivial amounts, for an entire subfield of research. I can think of individual federal grants no one on HN has heard of or cares about that are are larger than all of those put together, which are outright fraudulent—those are dime-a-dozen.

Also, note that your first three examples aren't public money, rather private philanthropy. No one can speak against where Jim Simons gifts his billions (and in point of fact Simons is an expert in quantum field theory himself—no one's scammed him, if he's decided string theorists are worth donating to. He reads and understands the papers they write).

https://en.wikipedia.org/wiki/Jim_Simons_(mathematician)

- "(albeit not in high energy physics)"

It's a fair anchoring point, isn't it? It's the theory and experiment side of the same field. We're just spending 0.01% of the experimental budget on some (possibly wrong and possibly dead-end) theory ideas, and the coffee that produced them.


In context, those are not shockingly high sums. The real problem seems to be what Woit summarizes in this 2004 (!!) comment on his blog:

> It takes a non-trivial amount of time and effort to absorb new mathematical ideas and by so dominating the mathematical end of particle theory for twenty years, string theory has monopolized the time of the mathematically sophisticated members of the community. It has also quite literally driven out of the field a lot of people who were interested in other sorts of ideas about how to apply mathematics to questions in particle theory.

https://www.math.columbia.edu/~woit/wordpress/?p=119&cpage=2...

edit: How bonkers is it that another two decades have been pissed away on this?


Well, its not true that people only worked on string theory during these last 20 years: notably Woit himself didn't. That there's loads of people in Brazil, Russia (or frankly any place except Princeton and IAS) trying weird approaches sums up to nothing in his telling.

Honestly, I get the impression that what Woit is really upset about is that people like his idol Witten didn't switch to work on his ideas, because only the genius of "towering intellects" like Witten's could solve this very hard problem. 0


The funding mentioned does not go directly to string theory research.

Investments in quantum computing research are orders of magnitude larger, even in Europe alone.

https://en.m.wikipedia.org/wiki/Quantum_Flagship

Edit: Removed snark, add reference.


The sad thing about that funding is how small it is. To billionaires and governments this is pocket change. Simons (personally, not the foundation) could spend ten times that to fund research into alternative models and not even notice.

A global anything-goes-if-you're-qualified frontiers research program would cost a few hundred million dollars. The odds of it finding some game changers are likely pretty good.

Instead we're getting a $17bn revamp of the LHC to turn it into a "Higgs factory".


Sure, it's just coffee, pens, paper, and 50,000,000,000€ particle accelerators! :)


That is not correct IMO. When a faculty is hired specifically in a given field the cost of the salary line is a few tens of million dollars.


> Jenson and Lisa Su being literally cousins

I know the word literally doesn't mean anything anymore, but Jenson and Lisa Su are first cousins once removed. Jensen's grandfather and Lisa's great-grandfather are the same person.

https://www.businessinsider.com/nvidia-jensen-huang-amd-lisa...

Their family tree according to Jean Wu, a former Taiwanese journalist : https://www.facebook.com/photo.php?fbid=350633737719840&set=...


I know what the word "literally" means, there's a great Sorkin bit on it [1] that's eerily prescient given that show is like, 15 years old. Via your own citation it's apparently Lisa Su who doesn't know what "literally" means, as she asserts that they are "second cousins", which is literally false according if your second citation says "first cousins, once-removed", which Quora [2] says means they're closely blood-related.

I don't know how their family works, but in mine and most people from my neighborhood, a first-cousin once-removed is fucking family, they're blood. Not being a securities lawyer myself I'm not sure which definition, statue, or regulation would apply here, [3] seems close (and has a creepy rush-job feel about it that smells vaguely like Kushner shit of one kind or another, Feb 2020 on an accelerated basis?).

But whether this squeaks above the line of regulations and laws and whatnot getting midnight "lgtm" stamps in an election year is, I'd argue, substantially missing the point.

When I recently said:

"Now did Lisa Su decide to "concentrate on the supercomputing market with the MI300XYZ" and Jensen decided to "concentrate on AI with Hopper" independently to a degree where the market is perfectly partitioned? Who knows, I certainly don't have proof one way or the other. But if someone made a call being like "I'm thinking of focusing on X but don't really see our differentiation in Y. How's Cathy?", it wouldn't be the fucking first time." [4]

I thought at the time I was kinda pushing it with how flip that sounded, but lo and behold, I was insufficiently cynical.

So when I say that I literally don't understand why anyone is defending this trivially dubious cartel behavior complete with a 55.58% Net Profit Margin in an ostensibly competitive market both directly and indirectly subsidized by the taxpayer (TSMC isn't going to fight off the PLA with their next process node) [5], I think Leona Lansing knows that the public will burn the building down with this shit in it before they let this shit get much ickier.

[1] https://www.youtube.com/watch?v=_1kETLlGn-8

[2] https://www.quora.com/What-is-the-difference-between-a-secon...

[3] https://www.winston.com/en/blogs-and-podcasts/capital-market...

[4] https://news.ycombinator.com/item?id=39362196

[5] https://www.businessinsider.com/nvidia-ai-chip-semiconductor...


> but it will require paradigm shift, so there will be a lot of resistance before revolution.

I think the main point of resistance is the incompatibility with observations. All Tired light models have been falsified: https://en.wikipedia.org/wiki/Tired_light#Specific_falsified...

If you're aware of a model that can fit some or all of our observations, please share it!


I have my own theory, which is not disproved yet: gravitational background noise slow down light a bit. Gravitation affects whole stream of photons in uniform way, not individual photons. Moreover, it doesn't change direction of photons, so no blur or scattering. My napking maths, which I did few months ago, tells that gravitational delaying should case effect of same magnitude as in red shift, (I did calculation for one frequency only, for proper calculation I need to know the temperature of the noise).


>from one point in space

- We have multiple observatories on and around the planet - The Earth is moving around the Sun - The Sun is moving around the centre of the galaxy - The galaxy is moving towards the great attractor, etc

The Copernican principle states that humans, on the Earth or in the Solar System, are not privileged observers of the universe, that observations from the Earth are representative of observations from the average position in the universe. This has been tested in various ways: https://en.wikipedia.org/wiki/Copernican_principle#Tests_of_...

A nice PBS spacetime video about the topic: https://www.youtube.com/watch?v=q-6oU3jXAho

You can also ask how do we know that the laws of physics haven't changed over time. We don't. But at some point you have to make a few basic assumptions in order to have any hope of making scientific progress.


> Nobody had a clue

In the 3rd century BC, Aristarchus calculated that the Sun was between 18 and 20 times farther away from the Earth than the Moon, and proposed the Heliocentric model as a result. The true value is instead approximately 400 times. But it's incredible given that he didn't have lenses, the value of Pi, and that the Geocentric model was considered correct until 1800 years after his death.

https://en.wikipedia.org/wiki/Aristarchus_of_Samos#Distance_...

Nice video about the cosmic distance ladder by Terence Tao: https://www.youtube.com/watch?v=7ne0GArfeMs


yeah i would call estimating it as 20x when it is actually 400x firmly within “not having a clue”.

He didn’t say nobody had a clue about heliocentrism.


But I believe he was the winner for many years under price is right rules.


Smugly: "1 mile."


Can you claim to be a winner under the rules of a game that won’t be invented yet for hundreds of years?


Yes. The fact that even this was a thought and he was charting the space bodies and trying to establish distances between them. The rules were invented. The players just were not famous.


* thousands


His method was fundamentally sound though. He realized that moonlight is reflected sunlight, and that if you observe the angle between the sun and the moon in the sky at exactly half moon, you can calculate the distance to the sun relative to the distance to the moon.


I appreciate that he worked on it at least. Around the same era, someone else calculated the circumference of the earth (and that it was round) in a pretty accurate fashion (between −2.4% and +0.8% off) based on measuring shadows on equally sized posts at different locations on the same date. Googled, it was Eratosthenes, the cities were Alexandria and Syene/Assuan.


One of my favourite episodes of Cosmos centres around Eratosthenes’ calculation of the circumference of the Earth: https://youtu.be/G8cbIWMv0rI?si=CuX49ki1GIvBLpeL


How did they take measurements in two different cities at the same time without clocks?


IIRC they walked directly north and measured at midday.


Plus they didn't know the distance to the moon


He almost certainly knew that it was closer to 400x, but could not believe it, or did not think others would believe it. Given the size of the Earth (which he knew), that would have made the distance to and the size of the Sun something hard to stomach.


Can we call it an estimation if it's a range (18 to 20 times further than the Moon) and yet it is incorrect?

If he said "between 2 and 1'000'000 times farther than Moon", it would be very imprecise, but not incorrect. If he said "20 times farther" - it would be an extremely inaccurate estimate.


>If known programs cannot run on this new OS then it is defective.

I understand the problem is that, like String Theory, this framework has a practically unlimited supply of variables that can simply be tuned to fit existing experiments, while not offering any way to be tested.


Indeed! But it is beneficial to have additional formalisms; it gives you hints about what kind of modifications to 'normal' physics might be possible.


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