sega_sai

38 ms·

541.
by sega_sai 4y ago
I'm not sure I buy this argument. People still need to learn that 2+2=4, derivative of sine is cosine and similarly simple things in non-STEM fields. Sure these questions can be answered by ChatGPT trivially, but it doesn't mean t
542.
by sega_sai 4y ago
"The rest is politics" Mostly UK focused. https://linktr.ee/restispolitics
543.
by sega_sai 4y ago
I'm sorry but I call BS on this. You claimed a specific figure 3x. I'm not claiming things are particularly great in Edinburgh, but people on the council's waiting list are not necessarily homeless.
544.
by sega_sai 4y ago
"is 3x the rate of SF" -- citation needed. I live in Edinburgh and have been in SF and very much struggle to believe it.
545.
by sega_sai 4y ago
> No, he's correct that each galaxy does need tuning. Specifically, the amount of DM and it's specific distribution is tuned to match each observation, which is what the OP said. Not true. The LCDM predicts the DM distribution
546.
by sega_sai 4y ago
You don't seem to quite understand the current cosmological models. You don't need special cases for every galaxy. Instead you 'just' need to add a weakly interacting particle with the right density (30% of critical). T
547.
by sega_sai 4y ago
It's the same paper, it was just accepted to pnas/(published on the website).
548.
by sega_sai 4y ago
I do know that many on HN are critical of twitter, but since the start of the war with Ukraine, twitter was an essential way to get fresh news/analysis of the situation. Therefore it's a pity that twitter is going down. And I do t
549.
by sega_sai 4y ago
In this case I kinda care if too much money was spent on rebranding, because OUP publishes science books and journals, so I don't really want pay extra of page charges for that...
550.
by sega_sai 4y ago
I don't like it as it seems to remind me of the James Bond intro. But it seems most (or at least a large fraction) of people don't really like rebrands. So it probably doesn't really matter (unless unreasonable amount of mon
551.
University of Edinburgh staff is furious after the migration to Oracle HR system(edinburghnews.scotsman.com)
5 points by sega_sai 4y ago|1 comments
552.
by sega_sai 4y ago
A year and a half ago the university has migrated to Oracle's People and Money system with all the finance department moving to the system a few months ago. Since then due to issues with the system PhD student stipend payments have bee
553.
by sega_sai 4y ago
I always try to separate facts, deduction and values. * We can agree and disagree about the facts. This is the worst case and it is probably not worth discussing and try to change someone's mind if we disagree about basic facts. * One
554.
by sega_sai 4y ago
Yes I agree. I don't care if Musk trolls about twitter or about crypto or gamestop stocks, but here we're are talking about people's lives.
555.
by sega_sai 4y ago
That sounded plausible to me initially, but then other news came in (as well as continued reports of issues with starlink). But it is possible that there is nothing sinister here.
556.
by sega_sai 4y ago
Call me conspiratorial, but I do find it weird that first there were these 'peace plans' from Musk, than reports of Starlink problems in Ukraine, then claims about the conversations with Putin (that Musk denied), followed now by t
557.
by sega_sai 4y ago
In the end I believe the Bayesian inference is more straightforward to implement and understand if you can afford computationally sampling of the posterior. So I think at least in physics there is a shift towards Bayesian approaches.
558.
by sega_sai 4y ago
The telescope collects light over large area. The camera records the image.
559.
by sega_sai 4y ago
I can't comment on detailed economics, but but given this phrase "In France and the UK, this is providing a natural hedge to power prices and helps keep retail prices down" the rest of the article seems dubious to me, given
560.
by sega_sai 4y ago
I don't think this is surprising. If the utility function that is optimized by companies is profitability, the typical lifetime just above the warranty time is the result. In some sense that's expected from companies that have sha
561.
by sega_sai 4y ago
Yes there are facts. I.e. there is a particle called electron, there is a Sun, Cosmic Microwave background, Milky Way galaxy. I'd say those are facts. But I do think the boundary what's a 'fact' vs model/theory depe
562.
by sega_sai 4y ago
It's certainly a thought provoking piece. I'm wondering how stable the system is if all countries decide to degrowth, but one doesn't play ball. Naively you'd think that country would start to dominate economically&#x2F
563.
by sega_sai 4y ago
I don't believe in fundamentally correct theories. All theories have limitations. They work until they do not. Is general relativity fundamentally correct ? I wouldn't call it that (others may disagree), because it doesn't e
564.
by sega_sai 4y ago
I have personally no problems with epicycles. Those were effectively the Fourier decompositions of the elliptical orbits while viewed from the Earth. At some point we found a simpler and a more predictive theory and that naturally produce
565.
by sega_sai 4y ago
Astrophysicist here. This is the same shtick from from a known anti-DM guy. A few points. * DM particle haven't yet been found. * The current best theory of the structure formation and galaxy evolution involves dark matter and critic
566.
by sega_sai 4y ago
I'm not an expert in the topic by any means, but it feels to me like goal-post moving. Previously I had the impression they were saying 'protein folding' is the key problem. Now they say, so what we can fold proteins, there i
567.
by sega_sai 4y ago
Astronomer here. This is clearly an overhyped title. Sure JWST is great and a lot will hopefully come from it, but we don't need to overhype it. So far we learned from JWST that it is performing well, but no ground breaking results (bu
568.
by sega_sai 4y ago
It reads a bit like a text from people who were predicting rain everyday for last 10 years, and now when it finally rained they say "you see, we were right all this time". Unless this people catalogue their specific predictions ov
569.
The Case Against Crypto(themarkup.org)
11 points by sega_sai 4y ago|4 comments
570.
by sega_sai 4y ago
Plantnet is great. There is also a similar app for bird song identification -- BirdNet.

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