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jessermeyer

460 karma · joined February 1, 2015

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jessermeyer··on Robert Sapolsky on Depression (2009)
He mentions this in passing on the Mindscape podcast (with Sean Carroll). Essentially, he's read too many studies that have participants perform so called 'rational' tests whose outcomes are largely a function of the environment and not the 'given test' -- ie, the presence of a foul smell caused a statistical difference in the outcome of the test. Our capacity to reflect and internalize is, to him, another output of a vast and continual, unconscious, shaping all life undergoes.
jessermeyer··on Althttpd: Simple webserver in a single C file
Right. Reading the entire conversation shows the parent messaging is FUD.
jessermeyer··on The Apple M1 compiles Linux 30% faster than my Intel i9
I think the idea is by removing L3 has allowed for an increase of both L1/2.
jessermeyer··on The global chip shortage is starting to have consequences
The parent was asking why public funding implied public ownership. That is the default. Multibillion dollar negotiations are a series of complicated compromises, so that the public would be willing to finance a fab they will neither own nor hold power over to satisfy global demand is well beyond the 'burden of proof' line.
jessermeyer··on The global chip shortage is starting to have consequences
Because it would ultimately be paid for by the public.
jessermeyer··on Gravity is a double copy of other forces
In a Newtonian context, gravity is a force.

In an Einsteinian context, forces are not even discussed.

jessermeyer··on Particle mystery: physicists confirm the muon is more magnetic than predicted
> Gravity isn’t a force in general relativity.

More importantly, GR has nothing to say about forces at all.

jessermeyer··on Red seaweed supplementation reduces enteric methane by over 80% in beef steers
Why is this incredibly important? Is there some huge proportion of unused, rotting feed in the world?
jessermeyer··on Lost in Thought: Psychological Risks of Meditation
Namaste.
jessermeyer··on Lost in Thought: Psychological Risks of Meditation
I encountered this and wrote about it in other meditation thread. Here I've inlined it below.

Meditation is a blade with no hilt.

I _accidentally_ fell into a vipassana state of mind after the first time trying a particular religious chant, seriously, from out of the pains of boredom as a 20 year old.

At the time I lived nearby mountains, and after 'coming to', I saw them through the window. I cannot describe to you the overwhelming feeling of beauty and awe that crashed over me. It was as though this was the very first time I had ever seen mountains. I think the best description I can manage comes from 'Both Sides Now' by Joni Mitchell.

'I've looked at clouds from both sides now From up and down, and still somehow It's cloud illusions I recall I really don't know clouds at all'

The experience was so disorienting. As if I was seeing the mountains for what they were directly through my senses and not mediated by my knowledge of what mountains were like, linguistically.

It changed my entire life -- weeks later later I lost my job and fell into a 5 year extreme depression / anxiety spell in the attempt to reconcile my adolescent religious upbringing with the continued insight from that experience. Absolutely worthwhile, in hindsight, but it cost me near everything for it.

https://news.ycombinator.com/item?id=24186942

jessermeyer··on Common Mistakes of New Engineering Managers
My hope is that those illustrate the 'spirit of the law' of taking both responsibilities equally serious. An issue is when middle management, so often comprised of literally minded number crunchers, interferes.
jessermeyer··on Warren Buffett's bet against hedge funds at the Long Now Foundation (2008-17)
Under what time-horizon is the theorem valid for?
jessermeyer··on Actually Portable Executable
Right. I believe the long term vision is to JIT for other architectures.
jessermeyer··on Mypyc: Compile type-annotated Python to C
JIT works great here too. It would see iteration and the associated mathematical calculations as a hotspot, and optimize only those parts, which is easy since the arrays are statically typed and sized.

I say this as a Computer Scientist at NASA that tends to re-write the scientific code in straight C. But for many workloads, a JIT would make my team more productive, basically for free as a user.

jessermeyer··on I prepared for a decade to graduate in CS in three months
Algorithms II is typically a mathematical proof class about algorithms. At my university, it was used as a filter class, and quite demanding. I think it was also 4 credits.
jessermeyer··on Anti-Pasta: When Italian Futurists Tried to Ban Pasta in Italy
Thanks for the citations! I'm familiar with some of these, but not others.
jessermeyer··on Anti-Pasta: When Italian Futurists Tried to Ban Pasta in Italy
>Over the last several decades they have debunked and disproven this several times.

Citations please.

jessermeyer··on Olbers' Paradox
Thanks for spelling it out. Makes more sense now.
jessermeyer··on Olbers' Paradox
> even with a powerful telescope stars don't fill up your entire field of view.

Suppose the experiment is repeated on a black pixel from the Deep Field image, and another swell of stars are observed, hinting at a kind of fractal distribution.

Were the universe eternal and static, why could this pattern not repeat indefinitely in infinite time, space and matter? The paradox seems to assume a kind of infinite level of sensitivity of the observer.

jessermeyer··on Olbers' Paradox
The Hubble was pointed at what appeared to be a black void of space, and revealed lush fields of stars and galaxies.

So at one degree of perception, we have an empty void, and at another, a bright flush of light and activity.

jessermeyer··on EU countries team up for semiconductor push
Agner Fog has been researching this very question.

https://www.forwardcom.info/

jessermeyer··on Computer input latency from 1977-2017 (2017)
Do you only notice the input lag in-games or does it persist when, say, dragging application windows around?
jessermeyer··on Computer input latency from 1977-2017 (2017)
Interesting. To be clear, the only change was the GFX card (and driver)?
jessermeyer··on Computer input latency from 1977-2017 (2017)
Additionally, the input lag may have been there all along but was not perceivable due to low performance.
jessermeyer··on An Introduction to Data Oriented Design with Rust
'The hardware is the platform' is the DOD mantra.

It's not a weakness to integrate more information about the problem space into the solution. It's engineering. To _ignore_ information about the problem space is certainly a weakness, and is partly responsible why the Windows boot time appears to be a cosmological constant.

jessermeyer··on Nvidia Unveils GeForce RTX 30 Series GPUs
Source on cpu bypass and ssd decomp? That reads like ps5 tech.
jessermeyer··on Almost 1 in 3 pilots in Pakistan have fake licenses, aviation minister says
Ignorant of ... lowering the landing gears to land? It's just astonishing.
jessermeyer··on Almost 1 in 3 pilots in Pakistan have fake licenses, aviation minister says
The pilot was reportedly well seasoned. I have my doubts about the quality of the report given the incredible mishandling of the situation.

"Imran Narejo, an official of the PIA Pilots Association, said Gul was a seasoned pilot with 18,000 hours of experience including over 4,000 hours in the A320."

https://english.kyodonews.net/news/2020/05/9616e4079ce1-at-l...

jessermeyer··on Haiku R1/beta2 has been released
A visual interface that sorts by type, file size, date time, name, etc, are just intuitive group_by SQL commands.
jessermeyer··on Haiku R1/beta2 has been released
> A filesystem with indexed metadata sounds great but who is actually using it and how?

One of my first sour experiences with NTFS was the horror involved in learning how to find which files have changed since some given time in a directory. I expected a SQL-ish interface but...omg. omg.

The reason for tracking changes in files was for hot loading art assets into a running program.

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