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sleepy_keita commented on The MacBook Neo   daringfireball.net/2026/0... · Posted by u/etothet
mohsen1 · 3 days ago
It's possible that they use the camera to measure room brightness
sleepy_keita · 3 days ago
I thought this too. If they're using the camera to do brightness, it needs to be on when the user isn't using it - if the activity LED is tied to the camera power rail (not sure if it is), it might look like there's something nefarious going on. No way Apple would let that go out the door.
sleepy_keita commented on World-first gigabit laser link between aircraft and geostationary satellite   esa.int/Applications/Conn... · Posted by u/giuliomagnifico
dogma1138 · 9 days ago
Uplink alone can be significant for clandestine operations.

You can have a stealth drone which is effectively invisible to SIGINT transmitting real time intelligence to a satellite whilst either operating autonomously or receiving commands via a wide area encrypted broadcast (yes I know you can theoretically detect receivers through signal attenuation but at these distances it’s effectively impossible to do).

sleepy_keita · 9 days ago
They say "error-free connection", which implies 2-way communication, right?
sleepy_keita commented on Selling SaaS in Japan   embedworkflow.com/blog/wh... · Posted by u/ewf
sleepy_keita · 2 months ago
I'm still pre-launch, but I've attended (and presented at) a couple conferences / industry events for my SaaS in Japan. You can get a lot of traction by getting out there and actually talking to people. Networking is important (probably this is the same anywhere?) and talking to other presenters is as important as talking to potential customers, because you can get that relationship going for mutual benefit.
sleepy_keita commented on AI is forcing us to write good code   bits.logic.inc/p/ai-is-fo... · Posted by u/sgk284
danieka · 2 months ago
I thought that the article would be about if we want AI to be effective, we should write good code.

What I notice is that Claude stumbles more on code that is illogical, unclear or has bad variable names. For example if a variable is name "iteration_count" but actually contains a sum that will "fool" AI.

So keeping the code tidy gives the AI clearer hints on what's going on which gives better results. But I guess that's equally true for humans.

sleepy_keita · 2 months ago
Humans can work with these cases better though because they have access to better memory. Next time you see "iteration_count", you'll know that it actually has a sum, while a new AI session will have to re-discover it from scratch. I think this will only get better as time goes on, though.
sleepy_keita commented on It's Always TCP_NODELAY   brooker.co.za/blog/2024/0... · Posted by u/eieio
dllthomas · 3 months ago
Wildly, the Polish word "nagle" (pronounced differently) means "suddenly" or "all at once", which is just astonishingly apropos for what I'm almost certain is pure coincidence.
sleepy_keita · 3 months ago
Yeah, it's named after the person who wrote the RFC - John Nagle. Wild coincidence! https://datatracker.ietf.org/doc/html/rfc896
sleepy_keita commented on Heroku Support for .NET 10   heroku.com/blog/support-f... · Posted by u/runesoerensen
cultofmetatron · 4 months ago
I lament what could have been with heroku. I did some back of the envelope calculations for what it would have cost for my own startup to run on it and it came out to significantly more than what it costs us on aws INCLUDING our dedicated devops guy. They really killed its utility for anything bigger than a hobby project.
sleepy_keita · 4 months ago
Yeah. It used to be the go-to for starting simple projects. We have quite a bit of other options in this space now, though - GH Pages, Cloudflare workers, Vercel, Netlify, etc etc...
sleepy_keita commented on Why do some radio towers blink?   jeffgeerling.com/blog/202... · Posted by u/warrenm
ssl-3 · 4 months ago
How did that work, do you suppose?

How does one connect a lamp to 3-phase power?

Are/were there 3-phase fluorescent tubes available?

Or are we relying on the spinny-thing that is to be observed to somehow be illuminated by all three phases, with three lamps or fixtures, simultaneously? Without such malarcky as shadows or inverse-square to muddy our vision?

Or maybe a multiplicity of single fixtures with 3 tubes -- one tube per each phase?

And even then: Doesn't it still strobe somewhat at (50*3*2)=300 or (60*3*2)=360Hz, instead of the 100- or 120-Hz that a shop lit by a single phase might provide?

(LEDs are out-of-scope of this question, of course: Line-voltage LED lamps can have integrated electronics and can therefore have diode elements that are driven by things that approach [or even achieve] DC, which changes the rules.

And, of course: Incandescent lamps have enough persistence that stroboscopic effects are generally not an issue with a human eye.)

sleepy_keita · 4 months ago
They're saying that you have 3 banks of lights, each connected to one phase of the 3 phase input. That way, when only 1 bank goes out, it's easy to see that one phase is out.
sleepy_keita commented on Why is Venus hell and Earth an Eden?   quantamagazine.org/why-is... · Posted by u/pseudolus
stavros · 6 months ago
Why are tides a forcing function? Marine life has been perfectly content just not going near a beach.
sleepy_keita · 6 months ago
I was thinking more on the lines of "if marine life never found itself stranded on land, it wouldn't need to evolve to survive on the land"
sleepy_keita commented on Why is Venus hell and Earth an Eden?   quantamagazine.org/why-is... · Posted by u/pseudolus
yazantapuz · 6 months ago
If i remember right, according to one of Asimov's Foundation sequels, the Earth was unique due to its high level natural radioactivity, which allowed it to develop an ecosystem more vibrant than any other planet in the galaxy.
sleepy_keita · 6 months ago
Was just rereading - it was the radioactivity and the large natural satellite that was unique in his universe. Tides are interesting because once you have life in the oceans, it's a kind of forcing function to adapt to land conditions
sleepy_keita commented on Rv, a new kind of Ruby management tool   andre.arko.net/2025/08/25... · Posted by u/steveklabnik
inopinatus · 7 months ago
Rust is the new C. Go had a shot but went in an applications direction. I predict that very soon, perhaps even inside of three decades, Rust will become the dominant, first-choice systems programming language.
sleepy_keita · 7 months ago
Maybe - but in this case, Ruby is written in C, it uses C extensions when performance matters, but tooling for the Ruby language itself is all in Ruby. Rust isn't replacing the use of C in the core of Ruby (yet) - it's stepping in to the area where Ruby would have been traditionally used.

u/sleepy_keita

KarmaCake day370February 21, 2019
About
Software engineer located in Yakushima, Kagoshima, Japan. Working on geospatial solutions for the Japan market. Founder KotobaMedia: https://kotobamedia.com
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