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ganafagol

1,274 karma · joined March 3, 2020

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ganafagol··on The price of lithium-ion batteries has declined by 97% in the last three decades
Synthetic fuels scale up even worse than battery density.
ganafagol··on On 'Biweekly' and 'Bimonthly'
What's nonsensical and what is not is subjective. Different people assume different things about everything that's not explicit. That's why we are having this "this" vs "next" discussion in the first place.

Connecting "next" with a German translation of "nähest" ("closest") is just as nonsensical.

ganafagol··on On 'Biweekly' and 'Bimonthly'
From a mandarin perspective, they are just different accents.
ganafagol··on On 'Biweekly' and 'Bimonthly'
No. On a monday, the closest friday is in the past.
ganafagol··on The Dangers of Low Head Dams (2019)
> get rid of your life vest

This is terrible if not unresponsibly dangerous advice.

The top comment has a link to a database with cases of people drowning. The common pattern: if life vests were mentioned then those in the party who drowned were those who either took off their PFD or didn't wear one to start with.

Your best chance is to make it to the side of the river where the currents are less or nonexistent. A life vest increases your chances of making it there alive. Taking it off to dive down to some deep water outflow because somebody mentioned that stunt in some anecdote will get you killed for sure.

ganafagol··on How inevitable is the concept of numbers?
I had that view initially. And then I followed his writings for quite a few years and it started getting old.

And long. Loooong. His sales pitches seem to always go in circles. Computational irreducability here, causal graph there, namedrop Wolfram Language a few times with pretty pictures, make sure that "in our models" Einsteins theory and quantum mechanics are mentioned as special cases and "surprisingly everything works out beautifully". Yeah no right.

Time to move on. I've read enough of his 20-mile-long self-praising sales pich novels. He is just going in circles.

ganafagol··on How inevitable is the concept of numbers?
It's so sad to see that he is taking an interesting question and turns it into a sales pitch of his computational universe theory.

It's as if Stephen Wolframs mental horizon starts getting more and more restricted over the years since he tries to frame everything he sees in terms of his physical theory.

ganafagol··on How inevitable is the concept of numbers?
Starts his article in the very first sentence with referencing another article written by himself where he praises his achievement of having invented interstellar travel during a hollywood movie shoot for which he was the science advisor and which showcased the language invented by him and called by his name.

Stephen Wolfram is so self-centred, I sometimes wonder if it's actually a stage character invented by a really talented comedian.

ganafagol··on The Faux Generosity of the Super-Wealthy: Why Bill Gates Is a Menace to Society
Why is this flagged?
ganafagol··on The Faux Generosity of the Super-Wealthy: Why Bill Gates Is a Menace to Society
Yeah it's quite sad. A lot of critisism in the article is valid, but why make it so personal then?

I share a lot of the critisism, but billionaires are not "sick in the head". They are playing by the rules that society gives them. They were exploiting them with luck and smarts to get where they are. This is not praise, but a counterargument to the sentiment. Society needs to set boundaries, instead of not doing it and then villifying those who take advantage of that.

ganafagol··on DOOM Captcha
This is the best comment, by far. Of course we can have lots of brainstorming about other fun captcha-ish constructions, but the key question is whether they satisfy their purpose, which is to filter machines out and only those.

In low scale settings, if it's a place almost nobody knows, then this works, but many approaches work like just asking "What is 1+1?". Scale is low, no bot writer will bother to adjust.

In high scale, high visibility, none of this works. The incentive to break your captcha is so high that you'd need to basically construct a reverse turing test. You need to assume that the attacker is very powerful and very smart and will spend months custom tuning their solution to vreak your captcha. This is really hard and how to do it is the interesting discussion.

In summay, the setting matters. If it's the first one, we can debate toys all day long but they only have entertainment value. If it's the second then this is really hard and state of the art is to click pictures with traffic lights.

ganafagol··on Observing my cellphone switch towers
No it's not. A campus network has a PoE line to each access point. It's not a mesh, they don't route the traffic between the access points over the air.
ganafagol··on Observing my cellphone switch towers
Um, I'm pretty sure that there is not much of that handover stuff happening while browsing hacker news since that's likely in a low-velocity scenario, i.e., sitting on the toilet.
ganafagol··on Observing my cellphone switch towers
Would be great to have an app that shows a map with my position and the position of the current cell. And that could create such maps as in the article on-the-fly.

Anybody knows of such an app?

ganafagol··on The origin of “tweet” at Twitter (2013)
Which got watered down by doubling it, adding pictures/clips and threads.

Today people write whole articles in tweet threads. It's terrible.

ganafagol··on The origin of “tweet” at Twitter (2013)
The target group has changed.

Back in the day it was better for the geeks. They don't care about all that extra crap as much. But they do care about a simple API they can start hacking with and just drop a status line.

But today it's used by governments, election campaigns and presidents for important PR communication. And by grandma at home. They need those features and don't care about simplicity.

Target groups change as you grow. And that's also why often times original founders and engineers leave because it's not anymore the thing they signed up for. But they get replaced by other people.

ganafagol··on SeL4 on RISC-V Verified to Binary Code
And of all the security issues exploited out there, how many have to do with the kernel?

If some crappy javascript library leaks customers secrets for an online shop, where exactly is the OS kernel at fault?

If the CEO's secretary gets convinced to wire $1M to an oversees account because somebody made them believe it's the boss requesting it, then how would a verified microkernel have helped?

> The Linux CVE database was recently analyzed and it was determined that 96% of the vulnerabilities would be mitigated to at least non-critical status, if not completely eliminated, if linux were a microkernel architecture.

In a fair comparison you need to consider the CVEs that a microkernel would suffer which had been eliminated with a monolithical kernel.

Oh but it's verified, you say? Then the fair comparison is a verified monokernel vs a verified microkernel.

Apples and oranges.

ganafagol··on Ask HN: How do you generally build a product?
Honestly, this sounds terrible. If there is something the software world does not need then it's landing pages for vaporware.
ganafagol··on Ask HN: How do you generally build a product?
Problem is, those days tend to be far far apart. From one to the next, you'll have forgotten everything, and once saturday morning comes along, chances are the threshold to start again with that thing you last touched 5 weeks ago is so high that you end up bindge watching netflix instead.

Key is to keep the threshold minimal for getting back and making progress.

ganafagol··on Signal Tries to Run the Most Honest Facebook Ad Campaign Ever, Gets Banned
Or they "misinterpreted". Plausible deniability enables this win-win scenarion.
ganafagol··on Signal Tries to Run the Most Honest Facebook Ad Campaign Ever, Gets Banned
The Signal target group is people who value privacy. You appear to not be in that group.
ganafagol··on First genetically modified mosquitoes released in the United States
That's the "humans are part of nature, so everything we do is natural" defense. With that angle, this whole discussion is meaningless.
ganafagol··on First genetically modified mosquitoes released in the United States
Many "ecological niches" end up being key to the whole ecosystem. Mess them up and the whole ecosystem is messed up. The system is so complex that it's hard to know beforehand.
ganafagol··on First genetically modified mosquitoes released in the United States
And the story continues. The insect pest was countered with widespread pesticide use, eventually nearly extinguishing the bee population in large parts of China. So, today, masses of people walk around hand-pollinating fruit trees.

It's a disaster. Like always when humans intervene in key larts of the ecosystem and totally screw up the network effects.

Another story showing the vast effects of such interventions is the story of the wolf in Yellowstone.

ganafagol··on First genetically modified mosquitoes released in the United States
Neither is it obvious that it would not. And that needs to be shown here.

There is actually evidence to the contrary of your position. The grandparent post mentions mating discrimination.

ganafagol··on Self-Reproducing Cellular Automata
I'm talking about this self-replicating effect in particular. In some distance far far away, there'd be some instance of me exactly identical and behaving exactly identically including writing these words right now.

Or, more generally, some superimposed versions of me partially overlapping, as can be seen with those overlapping Es in the original article.

ganafagol··on Self-Reproducing Cellular Automata
If our universe is just one big cellular automaton (that's what Stephen Wolfram claims in his physics project) then one would wonder if we see a similar effect in real life.

Maybe the universe just doesn't use the right rule though.

ganafagol··on Stars that race through space at nearly the speed of light
Where they become important depends on your precision of measurenment. GPS satellites don't move at 2% the speed of light, but relativistic effects do play a role for the system to work since they need to be very precise in measuring and broadcasting time.
ganafagol··on Stars that race through space at nearly the speed of light
The asymmetry comes from only one of the twins experiencing a force causing it to accellerate at the point where it turns around to come back.
ganafagol··on Stars that race through space at nearly the speed of light
Tried this recently? Bug density is declining dramatically.
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