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sjf

827 karma · joined September 22, 2007

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sjf··on The Risk of Weak Online Banking Passwords
Name and shame please, this is insane.
sjf··on Living Near Trees, Not Just Green Space, Improves Wellbeing
It's not funny, it makes sense. Imagine what would happen if you are living in zone 3+, and your friend/partner lives in zone 3+ on the _opposite_ side of London. You could easily have a 90 minute travel time between those two points. In most places a travel time that long would count as being in another city.
sjf··on “I would like to maintain the floppy driver”
While this may be fine for you, it sucks for people reading the coding and searching it. Reading code is already a high concentration task, having to purposely ignore blocks of non-functional code makes it harder than it has to be. Also, now I can't just grep the codebase, I need to see the surrounding code as well to see if the search results are valid.
sjf··on Who Pays Writers?
They are not exactly getting paid for writing, they are getting paid for their domain knowledge and certification. In the same way you could say devs get really well compensated for typing.
sjf··on Who's afraid of a big bad optimizing compiler?
Secure code can absolutely be correct and be optimised in a way that reduces its security.

For example, to prevent timing attacks positive and negative code paths should take the same amount of time. An optimising compiler could decide that the operations in the negative code path are irrevelant, which in terms of the actual work its doing is true, and remove them. Except now it has reintroduced the timing attack.

sjf··on How to Debug (2010)
I believe the total opposite is true. If I can use a debugger you can bet I am going to prefer that over log statements. In the debugger I can see the value of any variable on the entire stack and how they change over time. If I want to log that I would have to add _many_ log statements, trawl through the output and then go back and remove them afterwards.
sjf··on Money laundering in the UK
I have opened many online bank accounts using only my social security number. I open bank accounts frequently for the sign up bonuses and haven't ever been asked to submit photo ID online.
sjf··on Researchers listen to people who hear voices
Temporal lobe epilepsy?
sjf··on Show HN: Fractal.parts – View and design fractals
Agreed, I can't see how the output is produced from the input, e.g https://fractal.parts/dfdfdfdfd it took several tries to even produce anything other a totally blank output.
sjf··on CUDA Grep
They ignored a key detail in their benchmark. They did not include the time it took to transfer the input file from memory to the GPU, (the GPU cores can only operate on graphics memory). This is easily going to be the most time consuming part. They also didn't include any IO operations in their timing, so instead of a 10x speedup, it is more likely to be a couple of percent faster as grep is going to be IO bound. This is a neat project, but there is a reason we are not using the GPU for regex matching.
sjf··on Global sea-level rise could be double our current predictions
I can't answer your question, but what will happen to the property market after sea level rise is a central part of Kim Stanley Robinson's book New York 2140. It is fascinating and I can highly recommend it.
sjf··on I Got a Knuth Check for 0x$3.00
The rest of the world uses SI units, why would you expect anything else in the international edition?
sjf··on Google Continues Slump After Ad Revenue Growth Slows
That's not difficult considering what happened in December.
sjf··on Ask HN: Best things in your bash_profile/aliases?
Similarly, the unp script automatically detects and unpacks most archives https://manpages.debian.org/jessie/unp/unp.1.en.html
sjf··on Ask HN: Did you delete your Facebook account in 2018?
The reason your friend suggestions were still there is because your email or phone number is in your friends contact list on their phone, and that data is shared with Facebook. This indirect information about you is called a shadow profile, deleting your FB account does not delete the shadow profile because the data belongs to your friends, not you.
sjf··on Nvidia's $1,100 AI brain for robots goes on sale
Depending on your definition of trickery, you could probably do it right now with a vending machine fridge and a conveyer belt.
sjf··on Searching the Creative Internet
The answer is still the same. Press releases are accessible to the general public and have a wider appeal than research papers, so they appear higher in the search ranking. I'm not sure why the author of the article thinks only people capable of reading and understanding the consequences of a research paper are interested in reports from NASA.
sjf··on A Massive New Harvard Study Shows Which Diet Burns the Most Calories
Because lettuce is filler whose main purpose seems to be to take up space on the plate. It doesn't provide an saity, and something like iceburg lettuce has very low nutritional content. It just a cop out for restaurants.
sjf··on PG&E stock plunged 32% after it disclosed a possible link to California’s fire
Temperate broadleaf forest
sjf··on Paul Buchheit on Joining Google, How to Become a Great Engineer, and Happiness
Yeah, me too. But Google has more in common with Intel now than when it had 23 employees.
sjf··on Kubernetes for personal projects? No thanks
I don't know how to design an IC either...
sjf··on Shavian alphabet
Agreed, I read a report that children learning English have to devote far more time to learning spelling than speakers of other languages, but this comes at the cost of time spent studying other subjects. I have never seen an argument against standardizing spelling, but I guess there is no political will and academic support to do it.
sjf··on Shavian alphabet
It's not immediately obvious what the benefit is over Pitman script, which is mentioned in the article. It seems like Pitman is faster to write because the characters are simpler, and afaik Pitman had a wider adoption, I've never heard of the Shavian alphabet before.
sjf··on Timeline of the far future
In the Three Body Problem series by Cixin Liu, the orbits of planets and moons in the solar system are altered to make colonization and terraforming easier.
sjf··on As Flow of Foreign Students Wanes, U.S. Universities Feel the Sting
You can't get an F1 visa without the school knowing, they are sponsoring the visa.
sjf··on The Uber Game: Can you make it in the gig economy?
I think they mean $1000/week, which makes more sense considering the character has two children. But who would get approved for a $4.3k/month mortgage on a single earner getting paid less than minimum wage?
sjf··on Should 15,000 Steps a Day Be Our New Exercise Target?
That's 7.5 miles, or over two hours of walking every day. Ouch, that's a lot of time.
sjf··on Most Electronics Being Banned on Certain US-Bound Flights
I don't know why you say that, while there are not scanners on every security lane at Heathrow they _cannot_ be refused, there is no pat-down alternative like in the US.

https://www.theguardian.com/uk/2010/jan/26/new-body-scanners...

sjf··on Go to the Wrong Hospital and You’re 3 Times More Likely to Die
If it's anything like getting sick in India expect misdiagnosis, over-prescription of drugs and prescription of drugs that are banned in the US.
sjf··on The Distribution of Users’ Computer Skills: Worse Than You Think
I should have said technology instead of computer, I would include smart phone under a broad definition of 'computing device'.
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