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fivea

934 karma · joined November 14, 2021

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fivea··on UCLA hiring Asst. Adjunct Professor “on a without salary basis” (PhD required)
> Is this common in academia?

This is extremely common in academia. This is typically used to ensure exceptional long time researchers and PhD students, who already have all the context they need to have, have a shot at staying in the institution as a reward for their work.

The standard application process doesn't allow this because you have literally the whole world to compete with for a position, evaluation processes can be gamed and exploited, and in some cases you also have unscrupulous individuals who falsify their credentials in a way that can't be corroborated in a timely manner.

fivea··on UCLA hiring Asst. Adjunct Professor “on a without salary basis” (PhD required)
> Chances are nobody is going to apply for a job that doesn’t compensate them?

Having "UCLA professor of X" on a CV looks way better than having nothing.

Keep things in perspective: there are people who pay large sums of money to go on boot camps so that they can have a line on their CV that can open doors.

fivea··on Russia threatens to abandon American astronaut in space aboard ISS
It's as if their bravado rhetoric for internal consumption leaked, but it just ends up looking pathetic and full of despair.

It's really a shame that the people of Russia have to be subjected to this humiliation. Russia had an image of a nation packed with highly skilled, bright and sharp individuals, but Putin's regime managed to burn all that down to the ground and instead putting on a show as a toddler throwing a tantrum.

fivea··on Apple M1 Ultra
> Yes, they entered the market around those years, but what does that change?

It means the hardware was purchased after it started to be discontinued.

It's hardly a reasonable take, and makes little sense, to complain how you can't upgrade hardware that was already being discontinued before you bought it.

> DDR3 and LGA1150 were not deemed "legacy" the day DDR4 and LGA1151 motherboards entered the market.

I googled for LGA1150 before I posted the message, and one of the first search results is a post on Linux tech tips dating way back to 2015 on whether LGA1150 was already dead.

And you purchased the Mobo one year after that.

fivea··on Command-line Tools can be 235x Faster than your Hadoop Cluster (2014)
> I can share with you that my solar-powered Pi3B+ hosting yourdatafitsinram is holding up quite well, being linked to on HN - a funny contrast to the kind of systems it links to in the table.

If all a server does is serve mostly static content from memory then it's not expected to handle a demanding workload beyond networking.

Therefore I fail to see the point of trying to downplay someone else's needs for TB of RAM just because you serve a site on a raspberry pi, as if that's the full extent of what anyone needs to do with a computer, particularly when the OP mentions big data.

fivea··on Command-line Tools can be 235x Faster than your Hadoop Cluster (2014)
> Systems like Power System E980 can handle up to 64TB RAM, which is a lot of data.

Doesn't that kind of system cost millions of dollars?

Hadoop and the like are popular because they run on COTS hardware that costs peanuts. It hardly makes any sense to argue that spending over a million dollars is enough to drop a solution that's primarily adopted because you do not have that kind of money to throw at a problem.

fivea··on Apple M1 Ultra
> I believed that until I realized I couldn't individually upgrade my CPU or RAM because I have a mobo with LGA1150 socket and only supports DDR3 (and it's only 6 years old).

DDR4 was released in 2014, which would suggest you purchased your mobo two full years after DDR3 was already deemed legacy technology and being phased out.

Also LGA1150 was succeeded by LGA1151 in 2015, which means you bought your mobo one full year after it was already legacy hardware.

fivea··on Apple M1 Ultra
> To be fair that $2000 also gets you +32GB RAM, +512GB storage, and +10 CPU cores.

Even though it's not an apples to apples comparison, keep in mind that a 1x32GB DIMM sells for less than 150$, and you can buy 1TB SSDs for less than 100$.

fivea··on Apple M1 Ultra
> L1/2/3 are CPU caches, not SSD.

Why did you omit the reference to "file system"?

Are we supposed to ignore the fact that a linker's main job is reading object files and write the output to a file?

I find this sort of argument particularly comical given a very old school technique to speed up compilation is to use a RAM drive to store the build's output.

fivea··on Apple M1 Ultra
> https://github.com/rui314/mold would suggest otherwise.

Does it, though?

I mean, if you read that link you'll notice it boasts the linker's performance by comparing it with cp and how it's "so fast that it is only 2x slower than cp on the same machine."

Is cp supposed to be CPU-bound?

fivea··on Apple M1 Ultra
> Exposing my limited understanding of that level of the computing stack - it is but Apple seems to have very very good caching strategies - filesystem and L1/2/3.

That would mean that these comparisons between Threadripper and the M1 Ultra do not reflect CPU performance but instead showcase whatever choice of SSD they've been using.

fivea··on Apple’s Mac Studio is a new desktop for creative professionals
> Is it? It's a double-height Mac mini with more ports and better cooling.

Proportions is a central topic in design, and they can make the difference between an elegant design piece and a block.

The Mac Studio, regardless of how impressive the hardware is, is not an elegant design piece. It's something you shove under the table.

fivea··on Apple M1 Ultra
> A lot of software does not take good advantage of multiple cores.

It sounds pointless to come up with synthetic benchmarks which emulate software that is not able to handle hardware, and then use said synthetic benchmarks to evaluate the hardware performance.

fivea··on Apple M1 Ultra
> The 3990x runs a bit faster on the initial compile stage but the linking is single threaded and the M1 Max catches up at that point.

Isn't linking IO-bound?

fivea··on Covid Policy Killed My Grandmother
> Canada locked down nursing homes completely yet 98.5% of COVID deaths were in nursing homes.

Isn't this explained by Canada's outstanding response to COVID that allowed it to have a much lower death rate than analogous countries such as the US?

https://www.bbc.com/news/world-us-canada-60380317

If your death rate is much lower because you succeed in protecting the bulk of the population, your death rate will be disproportionally comprised of the most vulnerable and at-risk groups.

fivea··on Moscow police officers stop people, request their phones to read their messages
> There has to be some sort of law of the internet that on a long enough timeline the political conversation will converge on modern American politics.

The Soviet Union already invented that strategy.

https://en.wikipedia.org/wiki/And_you_are_lynching_Negroes

fivea··on Moscow police officers stop people, request their phones to read their messages
> They already did something like "jail everyone" in the last century, it's not impossible for them to play by the same book again...

Let's rephrase it then: Putin can't jail everyone and still expect to have any semblance of support.

fivea··on Moscow police officers stop people, request their phones to read their messages
> Fear, as you say, is the purpose.

I would add that multiple aspects of Putin's attack plan for Ukraine relied heavily on its ability to instill fear.

Putin's regime expected Zelenski to flee at the sight of Russia's military at the border, they expected border cities to promptly fold at the sight of Russia's army, they expected Ukraine's army to surrender once Russia's army gained some ground, they expected all NATO and neighboring countries to stay quiet and did nothing when threatened, implicitly or explicitly, by them.

But thankfully their bluff was called, and Putin's regime was exposed as the fascist paper tiger they are.

fivea··on Why did renewables become so cheap so fast? (2020)
> 80% of energy used is in the world is from fossil fuel (...)

That's a clear example of lying with statistics, given that only a very limited number of countries in the world started investing in shifting away from fossil fuels.

It took the EU a massive politically-driven subsidies program to jump-start their own shift to renewables, and currently we're seeing European countries meeting all their country's needs for a few days with their own wind, solar, and hydro.

fivea··on Why did renewables become so cheap so fast? (2020)
> Why do you mention Chernobyl and Fukushima together? Fukushima basically only did some economic damage, Chernobyl was a catastrophe.

Both Chernobyl and Fukushima were disasters.

It just so happened that Fukushima also was the final straw.

fivea··on Why did renewables become so cheap so fast? (2020)
> How much would renewable cost if it wasn't supported by fossil fuel (e.g. for extracting and processing the resources needed to build solar panel)?

I find your comment pointless, given that in a not so distant past the bulk of energy was produced from fossil fuel.

Thankfully, the world is transitioning away from that, and at a considerable speed. We went from propaganda selling the lie that renewables were a passing fad to a point in time where entire countries register days where all their energy needs come from renewables and even overproduce energy, leading to negative energy costs.

fivea··on Why did renewables become so cheap so fast? (2020)
> Solar and wind are cheap, but intermittent. Batteries can help store energy from day to night.

You don't need batteries per se, only energy storage systems.

Pumped storage, pressurized air, flywheels, ultracapacitors, and of course chemical batteries. Pumped storage and compressed air systems store orders of magnitude more energy and power than batteries.

fivea··on Understanding the War in Ukraine
> Yes, unfortunately there are no easy solutions to all this.

How is Putin ceasing to throw Russia's unwilling and unwitting armed forces onto Ukraine not easy?

fivea··on NATO Response Force activated for first time
> So it begins...

It began the moment Putin decided to invade neighbouring countries.

It's as if NATO had a very precise goal.

fivea··on Current hardware trends make C++ exceptions harder to justify
> If you write a jpeg-processing service, it’s intuitive to raise an exception on a malformed jpeg (..)

Not really. Having to parse a malformed doc is not an exceptional situation: it's a basic use case, and one which is very close to the happy path.

fivea··on Industrial Augmented Reality – Who's Using It?
> The 3D model will differ from the actual construction. From the very beginning and more and more over time.

Not really. The point of construction is to turn the "3D model" into reality.

Some problems in the original planning can and will be spotted during construction but that just means plans are updated once conflicts are resolved.

There's even a occupation specialized in ensuring that what's being constructed complies with the "3D model": construction and building inspectors.

The mental models that are formed by software developers based on their personal experience within software development activities is not compatible with any day-to-day practices of any engineering field.

> Documentation is hard enough for software projects. Why would we expect documentation quality of construction to be better?

Because it is, by it's very nature and purpose. Practically all of the engineering deliverables are written documents. These documents held engineers liable to any defect. In engineering, documents matter the most.

Engineering is not software development, and software development is not engineering. Engineers need to put in writing stuff that works for decades, at their financial and even civil and criminal risk. You don't just hit the "build" button and retry if something failed. You put into writing exactly how something needs to be done in order to meet all requirements, and make sure that everything is done according to what was put in writing. If anything goes wrong, what's written down is the engineer's only defense.

fivea··on ‘Crypto Ruined My Life’: The Mental Health Crisis Hitting Bitcoin Investors
From the article:

> One man – a 33-year-old from Russia, who asked us not to share his name – told me he feels addicted to crypto, and is stuck in a cycle of trying to recover his losses but only losing more in the process.

We are at a point in time where everyone needs to be honest with themselves and acknowledge that crypto in general is, at best, just gambling, and should be treated accordingly, including acknowledging the problem of gambling addiction.

fivea··on ‘Crypto Ruined My Life’: The Mental Health Crisis Hitting Bitcoin Investors
> Hashim Yasir, 19, is an NFT project founder and crypto trader who lost “a good amount of money” in the recent crash. He tells VICE that it affected his mental health for some time: “[Up until then] I felt like I was finally getting pretty confident with this new skill, but it really felt like the market was officially going to drop to zero.”

I'm curious what he, and others like him, perceive this "new skill" to be, and exactly what led him to believe he had any degree of control over the outcome.

fivea··on Grocery delivery “dark stores” in Amsterdam
> Without wanting to pass judgement but as someone who experienced burnout in past positions, if you don't have the time or energy to do some form of weekly shopping (even if online) and cook some food, it feels to me that the solution is that you need to work less and rest more, rather than rely on 10 min delivery because you're mentally drained to do anything else.

That escalated from "I like online shopping with fast deliveries" to a needlessly antagonistic and judgemental "you are living your life totally wrong".

I love ordering stuff online and barely having to wait any time at all between clicking a button and getting it on my door step. I love how everyday shopping ceased to be a logistics problem. It's simply not possible to argue against the benefits to your everyday life of having the closest there ever was to a star trek replicator at the press of a button.

fivea··on Tell HN: I got 10x Hetzner storage at the same price
> If you read this Hetzner, please add managed PG to your cloud!

I dare say that if they offered managed Kubernetes with autoscaling at prices not too far away from their Hetzner Cloud offerings (vcpu, IP, block storage, etc) then there would be absolutely no reason at all to use any other cloud service provider, at least in the EU.

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