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mvieira38

688 karma · joined January 30, 2025

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mvieira38··on H-1B Visa Changes Approved by White House
Not to mention the EU countries already do effectively the same thing. If your wage is below a certain treshold (based on profession), you can't compete fairly with europeans (i.e. the company has to prove they couldn't find anyone), but if you're above it then you're eligible for the Blue Card program and get to compete fairly. Very similar to Trump's changes in intent
mvieira38··on Show HN: Move to dodge the bullets. How long can you survive?
I saw that one, too. It seems like he was manually removed or something, I don't see it anymore. Wonder what the exploit is
mvieira38··on Is Chain-of-Thought Reasoning of LLMs a Mirage? A Data Distribution Lens
You're saying they don't use math textbooks and math forums to train LLMs, then?
mvieira38··on Wikipedia loses challenge against Online Safety Act
Now is the best time to remember: if there's something you value online, download it. There's no problem with downloading the entirety of wikipedia, and it's actually pretty easy and light to do so. Get your favorite songs, movies, etc. too ASAP
mvieira38··on Optimizing my sleep around Claude usage limits
And interpreting the results, and writing the blog posts and posting. Become Claude
mvieira38··on I tried every todo app and ended up with a .txt file
I can't imagine using a to-do app that isn't Obsidian+tasks. You can link notes for infinite subtasking and for describing/logging to your heart's desire. Just better version of txt
mvieira38··on Optimizing my sleep around Claude usage limits
Please make this a series and monitor your vitals. Maybe routine cognitive tests would be a fun thing to do, like memory games or playing 10 games on lichess bullet daily, so we could track if the microsleeping is effective or not.
mvieira38··on Fight Chat Control
> "whatsapp"

Please don't include it in this conversation. That app is spyware and collects enough metadata on you for actual conversations not to matter, proven by them being bold enough to introduce personalized advertising inside the "e2ee" app

mvieira38··on Tor: How a military project became a lifeline for privacy
VPNs just shift trust from the service provider to the VPN provider, and I don't have much reason to do so for most of my uses. NordVPN or Surfshark are way scummier than a harmless blog or HN, for example, and have more financial and legal incentives to track me
mvieira38··on Tor: How a military project became a lifeline for privacy
Also don't use non-HTTPS websites while using Tor, and avoid downloading things on hidden services. Using a clearnet website's hidden service is better than the https version if available (duckduckgo and reddit offer both, for example), too, although only marginally so
mvieira38··on The surprise deprecation of GPT-4o for ChatGPT consumers
Great for the environment as well and the financial future of the company. I can't see how this is a bad thing, some people really were just suffering from Proompt Disorder
mvieira38··on Building Bluesky comments for my blog
Bluesky is just enshittified Mastodon. It advertises federation while making it extremely impractical to use
mvieira38··on GPT-5
Codex was straight-up left out of the material while they invited the CEO of Cursor and used Cursor for all agentic demonstrations. Weird
mvieira38··on GPT-5
It's good for NVDA if the AI companies can't squeeze more performance out of the same compute, which is the case if GPT-5 underperforms
mvieira38··on Emailing a one-time code is worse than passwords
Getting the State involved is just a different, much worse threat actor than Google, though. From this discussion it should be evident how much more sovereignity passwords give you, if you want the State involved it should regulate websites' policies on passwords, such as: no service shall be hostile to password managers (special character bans, short limits on length, no pasting), no service shall require regular password resetting (proven to worsen security).

State involvement may be better used in policing, too. Public repositories of leaked passwords (without usernames, of course) would do wonders, for example

mvieira38··on Windows XP Professional
I switched from Windows 10 to Fedora KDE 2 years ago and it's been good. Not great, but good. I do have the occasional problem with drivers and whatnot, but honestly Windows was just as bad, just with different stuff, and Windows was much less stable and much slower
mvieira38··on Emailing a one-time code is worse than passwords
Getting into your bitwarden account should be at least as hard as getting into your authenticator app or stealing your hardware key, though, if you're using it as intended, so I think it's ok for 2FA
mvieira38··on Emailing a one-time code is worse than passwords
With passwords, no account was even lost in the scenario for a recovery flow to start. An account recovery flow is only necessary because of the superfluous extra security, which will almost inevitably introduce more attack vectors than before (such as a social engineering attack through customer service) if the banks want to service customers like grandmas.
mvieira38··on Emailing a one-time code is worse than passwords
The without recourse is the part that matters... With passkeys or 2FA she's at risk of having to wait a day or more to go to the physical location (if there even is one, digital banks are huge in Latin America), with passwords she can just check her notebook the same night and start the recourse through official channels. I know she could just call the hotline, but if 24hr customer service guy can get you in your account same night then the bank is too insecure anyways
mvieira38··on Emailing a one-time code is worse than passwords
>"I’d rather granny needs to visit the bank to get access to her account again, than someone phishes her and steals all her money."

More like abuelita gets robbed at gunpoint and made to unlock and clear out her bank account, then has no recourse at home because her device was taken. I live in a third world country and even 2FA simply isn't viable for me due to how frequent phone robberies are. I've had to do the process once and it was a nightmare, whereas with passwords I can just log into Bitwarden wherever and I'm golden

mvieira38··on Cognitive decline can be slowed down with lifestyle changes
They 100% socialized more and slept better, I think. People used to have hobbies, too, at the very least watching TV and movies and talking to others about it... Lots of people nowadays just get home and do nothing but scroll
mvieira38··on Cognitive decline can be slowed down with lifestyle changes
In econometrical terms it would be "double causality", as it forms a vicious cycle. Using your phone to self-soothe leads to not developing real hobbies, which leads to more isolation, which leads to more phone usage.

Say you decide you're now a chess person. Instead of doomscrolling before bed you find relaxation in the meditative study of chess games for an hour a day before going to bed and now you use your phone only as an alarm. You join your local chess club to play IRL during weekends and attend some classes too. What were the effects? Well, there are the proven long-term cognitive benefits of learning and practicing chess, there's the immediate cognitive and emotional benefit of a larger social circle and a community, and medium term you'll feel good about yourself for achieving milestones (getting to 1000 ELO, winning the weekly tournament, etc.)

None of that would have happened if you had stayed on your phone. You probably already invest just as much time on it as you would in chess in this scenario, but it has no ROI, it is designed to suck you in.

mvieira38··on Cognitive decline can be slowed down with lifestyle changes
Honestly, the only way I found is to go cold turkey and really focus on hating the smartphone and "always online" culture. Reading up on the dangerous effects this stuff has on us and our children really helps with motivation, too. You won't stick to it if it's just for a specific reason like improving sleep or trying to read more books or whatever
mvieira38··on Cognitive decline can be slowed down with lifestyle changes
Work computer. I only check news (including HN) during business hours, to protect myself from unnecessary stress
mvieira38··on Cognitive decline can be slowed down with lifestyle changes
If you stop using your phone for anything other than communicating (yes, not just the loose "stop doomscrolling" advice) a lot of these will come naturally. It will lead you to using a real alarm clock and not using your phone after going to bed, which will make your sleep schedule that much more consistent, and also improve quality of sleep. These will probably give you more motivation, which you'll need because the time you used to waste on the phone now needs to be occupied by a real hobby, and here comes language learning, chess, music, etc.

(not saying you specifically are a phone addict)

mvieira38··on Jules, our asynchronous coding agent
It took me like half an afternoon to get set up for my workplace's monorepo, but our stack is pretty much just Python and MongoDB so I guess that's easier. I agree, it's a significant trade-off, it just enables a very convenient workflow once it's done, and stuff like having it make 4 different versions with no speed loss is mind-blowing.

One nice perk on the ChatGPT Team and Enterprise plans is that Codex environments can be shared, so my work setting this up saved my coworkers a bunch of time. I pretty much just showed how it worked to my buddy and he got going instantly

mvieira38··on We shouldn't have needed lockfiles
Give in to the noJS movement, there's no animation and it's a beautiful minimalistic site if you disable javascript
mvieira38··on Jules, our asynchronous coding agent
Different use cases, IMO. With a cloud solution like this it's much easier to ask it to solve whatever issues or backlog tasks you have and continue working on your own on your main project. I don't think this is a solution for vibecoding or for the AI copilot crowd
mvieira38··on Jules, our asynchronous coding agent
Good to see competition for Codex. I think cloud-based async agents like Codex and Jules are superior to the Claude Code/Aider/Cursor style of local integration. It's much safer to have them completely isolated from your own machine, and the loop of sending them commands, doing your own thing on your PC and then checking back whenever is way better than having to set up git worktrees or any other type of sandbox yourself
mvieira38··on Ask HN: Do you struggle with flow state when using AI assisted coding tools?
I'm really really enjoying the Codex UX so far, though. Having it in the cloud makes it so much safer, as it can't access my local data, and the slowness isn't so bad if you make a few changes to how you work on a project. It's not an app for vibecoding, it's essentially an intern
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