posix_me_less

14 ms·

91.
by posix_me_less 5y ago
> We know the number of photons in the universe (most of them are in the CMB), and we therefore know the number of protons. If the strongest argument for DM was fixing a particular model of nucleosynthesis, most people who care about thi
92.
by posix_me_less 5y ago
I don't see the point. Fourier methods, whether their modern form or their ancient form in the Ptolemy's model are useful, predictive and successful. They were used to predict planet positions, and (for example) sea levels near sh
93.
by posix_me_less 5y ago
Okay I can appreciate the fact that there are DM models that work with small number of parameters. But these are not working great for some galaxies, which pushes in direction of more parameters, or something different than DM. Quote from f
94.
by posix_me_less 5y ago
So I infer you are talking about large scale simulations of many galaxies/a region much greater than single galaxy, right? If so, do these kinds of simulations with 10 parameter model predict galactical rotation curves in agreement wit
95.
by posix_me_less 5y ago
I agree MOND results aren't that great now. But Kopernik's results weren't that great either, compared to standard theory. They gave less precise results initially. It took time for the astronomers to accept them. What kind o
96.
by posix_me_less 5y ago
Quantum theory is about linear reversible evolution based on some Hamiltonian operator. GR is non-linear non-Hamiltonian theory (a naive Hamiltonian is zero); it has strange one-way solutions such as irreversible collapse of stars into blac
97.
by posix_me_less 5y ago
Yes. And dark matter hypothesis contains this possibility. Just add correct amount of dark matter to ever star and you can get almost any rotation curve.
98.
by posix_me_less 5y ago
How would near field of black holes explain galaxies' rotation curves?
99.
by posix_me_less 5y ago
> The hypothesis have been extremely successful and predictive. Epicycles were successful and predictive. But they were later found to be the wrong way to understand the celestial motions. The problem is these calculations with dark matt
100.
by posix_me_less 5y ago
The name "dark matter" is bad, because matter that is dark absorbs a lot of light. Dark matter does not interact with light, light passes right through. It should have been called invisible matter, or non-electromagnetic matter.
101.
by posix_me_less 5y ago
Neptune hypothesis was successful, Vulcan wasn't [1] [1] https://en.wikipedia.org/wiki/Vulcan_(hypothetical_planet) In both cases, the assumption about another planet was a reasonable thing to investigate. Dark ma
102.
by posix_me_less 5y ago
That argument with field/particles is not right. MOND isn't adding arbitrary new position-dependent field like dark matter hypothesis does. MOND changes the universal law of gravity. That is a priori much better thing to try. Yes,
103.
by posix_me_less 6y ago
It has some great visuals and some of the character/casts are great (Margo), and it gives interesting perspective on how the astronauts feel in their job, ups and downs. However, lots of "human-story" scenes are too tangentia
104.
by posix_me_less 6y ago
> They literally do spend a lot more of products and services Yes, but not that much more. The smart rich people do not waste money like that. > Inflation wrecks (the typically meagre) savings of regular people. Yes, but that is the c
105.
by posix_me_less 6y ago
This is just one point of view of money and taxes, a mechanism to extract value from conquered population. This probably still happens in 21 century, but I hope we can see beyond that, at least in 1st and 2nd world. Money infrastructure for
106.
by posix_me_less 6y ago
Sales tax is a joke to the very rich and powerful. A guy with million dollars does not have to spend 1000x more on products and services than a regular guy with 1000 dollars. He uses that big money in different ways that do not get taxed by
107.
by posix_me_less 6y ago
Taxes are ineffective and unjust because of loopholes which the most rich people can exploit. Government should just print more money instead.
108.
by posix_me_less 6y ago
Not sure which Ars Technica article. Please give a link and citation and explain why that shows Stallman is in favour of child abuse. I don't think you will be able to do that.
109.
by posix_me_less 6y ago
Which real women? Why could they not reject such card?
110.
by posix_me_less 6y ago
This weird tirade does not give any convincing argument for its claims. More SW patents and big daddy government saving us from evil actors? Really? It is either an emotional release of a deranged FSF detractor, or a paid hit piece on Stall
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by posix_me_less 6y ago
> pieces of writing that lived on his site for decades that were in favour of child abuse. Come on, that is very hard to believe.
112.
by posix_me_less 6y ago
XPoint has only one use case, write-intensive small drives, e.g. filesystem metadata, because of its better latency and durability as compared to NAND flash. It makes no sense as a DRAM replacement or extension, because a) it is tricky to s
113.
by posix_me_less 6y ago
What would be the point? Make slow hardware even slower? Or slightly faster, by keeping DRAM and replacing SSD with costly XPoint? It makes no sense.
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by posix_me_less 6y ago
It did pan out, we have hundreds of functional and useful nuclear reactors in the world that produce electric energy with close to zero CO2 emissions. The focus is needed to double down to get rid of all coal/gas plants.
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by posix_me_less 6y ago
It is not possible to blow off very fine dust. Liquids are needed.
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by posix_me_less 6y ago
> stupidly expensive that can change if big governments focus on that > potentially dangerous the safest energy production per kWh hands down > radioactive waste we have no way of dealing with not true, we deal with it since
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by posix_me_less 6y ago
The GP point is valid. France production is much cleaner thanks to nuclear energy. Whether nuclear energy being "too expensive" is actually a relevant problem in this discussion depends on your ideas about the role of government,
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by posix_me_less 6y ago
Nuclear energy solves one pretty big problem: the need for coal and gas power plants. Big fat proportion of CO2 and other toxic stuff is released to atmosphere at those power plants.
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by posix_me_less 6y ago
> Google is showing quite regurlaly that it's not a reliable business partner Interesting, any examples?
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by posix_me_less 6y ago
I meant ordinary users should rely on developers' defaults. If the user is advanced enough, he will be able to go his own way. Yes I prefer the package manager too, when it works and gives me what I want. But for the software that chan

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