The app is really good, gave it a quick spin earlier, quite like it!
Readit Newskelsolaar commented on A year without caffeine (2013) bryanalexander.org/person... · Posted by u/andsoitis
This article (and it's second part) couldn't have come at a more helpful time. I have such an unhealthy relationship with caffeine (and sugary drinks in general), that I would literally go days without drinking any water. If it didn't come from a 7-11 or a coffee machine, I wasn't going to drink it.
Just this week, I decided to quit cold turkey, and drink nothing but water, and it has been eye opening. I didn't realize how much I depended on the drinks to get me through the day. But going just-water is definitely the only way I could have done this. Something about knowing I have nothing to look forward to besides water helps me just drink water, instead of waiting until I can find some energy drinks, and getting dehydrated in the process.
Not everyone is going to have as unhealthy relationship with caffeine as me, but I'm hoping my kidneys and gut will thank me. I know 22 year olds seldom suffer from heart attacks, but I'm not going to be 22 forever, so might as well start now.
I used to not drink coffee, joined the high-end VFX industry, started to drink a lot, e.g., 3 big dark mugs at work each day. We had top-of-the-line espresso machines and great coffee so it was easy. Something I noticed is that on weekends, I had systematically huge migraines, those were soothed by drinking more coffee...
The issue is that caffeine has a vaso-constricting effect on blood vessels [1], which then, when they re-expand by lack of caffeine creates the migraines.
One day, I decided to stop, I had an horrible week, constant migraines, it eventually stopped and I never really had coffee since then. Only 2 times during conditions where I needed which added the benefit that the caffeine had a really strong effect then.
I'm certainly missing the taste and ritual, so I replaced coffee with green tea, not as good but no migraines!
Beautiful website!
Without taking an extreme or absolutist stance on this issue, I generally agree with the author here. Dark mode should be reserved for after sunset and before sunrise.
The eyes are adapted to see daylight levels of light during daytime. If your ambient lighting and screen don't match this, then you're not using your body in the way it's evolved to function. What we need more of are screens with anti-glare and a wide range of brightness levels.
What might have a worse impact on your eyesight is the effects of Myopia, which is being exacerbated by basically every portable device with a screen. Anyone who has the technological literacy to enable dark mode (and advocate for it) is likely someone who gets above-average screen time and is therefore someone at a higher risk of myopia.
It absolutely depends on what you do, for any work involving computer imagery, a dark surround, i.e., dark UI, around the area of interest, e.g., 3D Viewport, 2D Canvas is a must so that to not bias the work. This one of the main reason why Adobe Photoshop, Adobe Lightroom, Autodesk Maya, Blender, The Foundry Nuke, Autodesk Flame, Baselight Filmlight, etc... all have dark themed UI.
Yeah. the HDR support is very nice. ACES got their system right the 2nd time around thankfully.
ACES 1.x was quite old and released at a time where HDR displays were pretty much non-existent. ACES 2.x is not perfect but trying to provide display rendering transforms that hit contradictory requirements is really hard, e.g., need to have a really nice rolloff and desaturation towards white whilst being able to reach corners of the gamut.
kelsolaar commented on LED types by color, brightness, and chemistry (2021) donklipstein.com/ledc.htm... · Posted by u/Lammy
What I want to see is someone go through and assign sRGB colors for each of the main LED types. It's surprisingly difficult. I've failed every time I've tried, in that what I come up with doing it by starting from the spectra (or a simple gaussian approximation) looks on screen nothing like the real LEDs. The greens (515-525nm) are particularly difficult.
I recognize that sRGB will never be able to do a perfect job, but it seems like it has to be possible to do decently well.
(What do I need this for? I design electronics. I use LEDs as indicators. I like to show the true color of the LED in my schematics and documentation, as best I can. And I try to never use the same color twice, in small and bespoke things, so there's less risk of indicator confusion, which means I've often got a lot of funny colors around.)
sRGB is not wide gamut enough to represent most of the LEDs, you would need a Wide Gamut display and use a space like ITU-R BT.2020.
kelsolaar commented on Grok 4 Fast now has 2M context window docs.x.ai/docs/models... · Posted by u/hereme888
Who here actually uses Grok? It's sad to see Elon's arc but when he doubled down on some of his political ideas he had it coming with the Tesla sales going down and x.ai not taken seriously.
I've always tried to remain apolitical and unbiased but it's hard to overlook who's behind a technology you wanna buy. Not that sama and others are saints either, it's just Elon's very obvious and vocal about it.
It's a shame, really, because Grok is a good model. But Elon promised to open source the previous model and it took them forever to do that with Grok 3. Sorry, but I wanna buy from someone who keeps their promises ("FSD by next year").
As you point out, Sam Altman is not exactly an altar boy: https://fastcompany.co.za/business/2025-11-07-sam-altmans-tr...
Ryan is the author of the RAD Debugger: https://github.com/EpicGamesExt/raddebugger
Typo on first sentence.