walrus1066

8 ms·

31.
by walrus1066 8y ago
Who would be held responsible? Coder? QA? Code reviewer? PM? person putting pressure on PM?
32.
by walrus1066 8y ago
'Mostly though, I think software developers just need to do better work, and stop blaming the project management for their own inability to deliver good work in a timely manner.' Even if this is the case, PM still responsible for
33.
by walrus1066 8y ago
Apologies, you are correct, jumped the gun a bit there. It's repulsive at short distances, attractive at longer distances. And oddly, the longer the distance, the stronger the force, it doesn't follow the inverse square law!
34.
by walrus1066 8y ago
Has to be gravitational only. Otherwise positive mass is repelled from negative mass, but the negative mass accelerates towards it. So both masses accelerate in the same direction, until they have infinite kinetic energy! Conservation of en
35.
by walrus1066 8y ago
I think the weirdness is, the distance between masses wouldn't change, they'd just accelerate together, in the same direction, indefinitely. Both mass would experience negative repulsive force: F=Gm(-m)/r^2 =-Gm^2/r^2 Th
36.
by walrus1066 8y ago
Strong nuclear force is always attractive.
37.
by walrus1066 8y ago
In my opinion, using RMDBS as source of truth makes more sense, because these systems were optimised for reliability, durability & data retention. To be completely honest, some have drunk the proverbial Confluent koolaid, with kafka bei
38.
Kafka as database – is it safe?
3 points by walrus1066 8y ago|2 comments
39.
by walrus1066 8y ago
For the W & Z bosons, their masses are derived from 3 other 'free parameters' of the SM. The Higgs mass is indeed a free parameter, but the SM wouldn't work of it's mass was greater than 200 GeV or so. The Higgs inte
40.
by walrus1066 8y ago
Yes, you're right. I was getting it jumbled up with the magnetic moment of the electron, which is predicted by the SM (well, the QED part anyway), to be slightly different to the 'classical' prediction. Experiment measurement
41.
by walrus1066 8y ago
I think this is excessively harsh. The only guarantees made about the LHC were, that it would prove or disprove the existence of the Higgs Boson. Believe me, experimental physicists are desperate to find the slightest deviation from the sta
42.
by walrus1066 8y ago
'Physics is notoriously bad at having curiosity about strange, unconventional, or truly novel ideas.' There is certainly no shortage of these! What we are short of, are ideas that are: - falsifiable - testable by experiment, with
43.
by walrus1066 8y ago
I think this is inevitable in a 'first past the post' voting system. The dynamic is identical in the UK.
44.
by walrus1066 8y ago
Surprised social credit isn't mentioned, it's incredibly dark and creepy concept. https://www.npr.org/sections/money/2018/10/09/655921710/chin...
45.
by walrus1066 8y ago
'I'm willing to bet that when a company wants to hire a two sigma candidate they don't go through all this nonsense' Can testify to this, interviewed via referral, was still asked some algo-trivia, didn't do too wel
46.
by walrus1066 8y ago
Think the key factor is, talented engineers write software that's maintainable, and easier to change, extend & adapt. This could make the difference between having to do a complete rewrite at great expense, vs a small tweak. For st
47.
by walrus1066 8y ago
I think 60% is an underestimate!
48.
by walrus1066 8y ago
Fair point r.e. low cross section. Think the main reason neutrons are ruled out as DM because free neutrons decay, they have a half-life of ~10 minutes. So if DM was neutron, nearly all of it would have decayed into protons, electrons &amp
49.
by walrus1066 8y ago
That quarks have charge, means they participate in electromagnetic interactions. So they can absorb, emit, & scatter photons. It doesn't matter that a neutron is overall charge neutral, because it's the elementary particles th
50.
by walrus1066 8y ago
Ultimately this is because we can't yet prove by experiment, which theory is the correct one. We need to observe these guys being produced in a particle collider to definitively know what dark matter is made of.
51.
by walrus1066 8y ago
It can't be baryonic matter, because baryons are made of quarks, which carry electric charge, and therefore interact with light, xrays etc. But we don't see dark matter scattering or absorbing the x-rays & whatnot emitted by s
52.
by walrus1066 8y ago
Staying longer at my current job. Over two years my has jumped ~50%, and I have a lot of independence & responsibility. I used to think you need to job hop to progress (in terms of position & salary) - definitely not always the case
53.
by walrus1066 8y ago
It's a problem, because we are no closer to answering questions like: - what is dark matter (the stuff which makes up 97% of the universe!) - what is dark energy (I.e. Why is the universe expanding at an accelerating rate?) - what happ
54.
by walrus1066 8y ago
To guarantee new physics, you'd need a 10^16 TeV collider, so literally one-thousand-trillion times more powerful than the LHC which is at 14 TeV! Context: at 10^16 TeV you start probing the planck energy scale, where gravity becomes s
55.
by walrus1066 8y ago
No chance of getting funding by justifying 'this $multi-billion collider may or may not find new physics outside the Standard Model'. The LHC only got funding because it was guaranteed to answer the question 'is there a Higgs
56.
by walrus1066 9y ago
Also, that even the smartest of us are vulnerable to the power of greed, 'fear of missing out' and herd mentality, to trump rational thought/judgement. It is why we will always have financial bubbles and scams.
57.
by walrus1066 9y ago
'I'd argue pointless whiteboard trivia doesn't give you good insight into an applicant, either. And yet, 90% of companies do it.' I've (thankfully), never had to whiteboard. Think it's a US/SF thing. That
58.
by walrus1066 9y ago
They're only following their incentives. What's gonna look better on a devs CV: 'spent a year maintaining a CRUD monolith app' vs 'spent a year breaking monolith into microservices, with shiny language X to boot&#x2
59.
by walrus1066 9y ago
I don't think the value of an asset is derived purely from scarcity, or the effort required to make it. What if the asset itself has no use? If I spend 1000 hours making a really bad doesn't, it'll have a value of zero, even
60.
by walrus1066 9y ago
'at the moment we're mostly passing tulips off to the greater fool.' At least tulips have some intrinsic value, I.e. They can be quite pretty!

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