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sebastian

268 karma · joined March 21, 2008

https://www.linkedin.com/in/sebastianmacias/
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sebastian··on Alignment pretraining: AI discourse creates self-fulfilling (mis)alignment
Yeah, I like the ratio framing. That does seem like the kind of experiment you'd want to run next.

The thing I'd be curious to separate out is ratio vs density. The fiction examples were positive, but a lot of the tokens are still spent on normal story work. The targeted examples put much more of the training signal on the AI being in the relevant situation and choosing against the bad option.

That makes me think the next thing to test is not just the positive/negative mix, but how much of the data is actually about the failure mode.

sebastian··on Alignment pretraining: AI discourse creates self-fulfilling (mis)alignment
I think the paper cuts a bit against the "just write nicer AI stories" version of this.

They tried something close to that. Positive AI fiction and also a "virtuous character" setup. Those didn't seem to do nearly as well as the targeted examples.

What mattered, at least in this setup, was more specific. The model sees the actual failure-mode scenario, the bad action is available, and the example shows the AI choosing against it.

So this reads less like "nicer AI stories" to me, and more like inoculation.

sebastian··on Show HN: EdgeDB – Next generation database
Which benefits does EdgeDB have over Hasura which isn't built on top of PostgreSQL but as a layer that runs on top of it and exposes a GraphQL API along with access control, event triggers and other features?
sebastian··on Move Fast and Migrate Things: How We Automated Migrations in Postgres
I would love to see the code open sourced! (it's ok if you have edge cases pending as long as they have been documented or at least mentioned in a README). Managing and running migrations smoothly without downtime is a very common challenge that a lot of startups face and I think a lot of us have been reinventing the wheel over and over to handle this due to the lack of current offerings.
sebastian··on Notion – All-in-one workspace for notes, tasks, wikis, and databases
There is an small bug that I found when trying to signup. The signup form doesn't allow signing up with .co domains [1].

[1] https://i.imgur.com/NDcd6X1.png

sebastian··on Which laptop to buy as a developer in 2018?
Lenovo Thinkpad 580, never been happier.
sebastian··on Gnome has moved to GitLab
Highly unrelated (and lots of reasons missing): I was never a fan of Gnome and for years ended up "just going with LXDE instead" until I gave Budgie a try about 6 months ago. I have never been happier in my life.
sebastian··on Show HN: Generating GraphQL servers for Go
Check out https://dgraph.io/ . I haven't had the chance to use it yet, but I have been following its development for a while. Definitely worth looking into.
sebastian··on Man who stole $1M bucket of gold details escape from US
The story in not over yet. He should sell the rights of his story for a movie and make the 1.2m back, only this time, the legit way.
sebastian··on Is it time for open processors?
> Open isn't a magic bullet.

But closeness makes it extremely difficult to find actual backdoors left on purpose. Open processors would be a first step in the right direction.

sebastian··on Firefox bullshit removal
Very helpful. It definitely would be worth developing an addon that would apply these settings for you.
sebastian··on New Thunderbird Releases and New Thunderbird Staff
Even though Mutt, Alpine, Sup and Notmuch might work great for some people they seem to be accessible only from a terminal, emacs, etc and very text heavy. As much as I love spending time on the terminal, I prefer a GUI app for my email.

Postbox unfortunately doesn't support Linux, besides that while I don't mind paying licences for great software, it doesn't look like Postbox is fully opensource [1].

[1] https://www.postbox-inc.com/coveredcode

sebastian··on New Thunderbird Releases and New Thunderbird Staff
Thanks for not letting Thunderbird die. In my opinion it's still the best and most customizable opensource email client and there is just not a viable replacement.

Most of the open source email clients I have tested require you to run a local webserver and access the mail using a web browser with very limited features. All I want/need is a desktop app that can be customized to work similar to Gmail, pulls and deletes emails from remote SMTP/IMAP servers and allows me to create backups locally.

Thunderbird gives me that.

sebastian··on Show HN: Gophercises – Coding Exercises for Budding Gophers
A realtime chat without auth but with private messages or multiple rooms. Basically the user will pick a nickname, click next and then be able to chat on a general or create/join a room.
sebastian··on Show HN: Gophercises – Coding Exercises for Budding Gophers
A WebSockets / realtime / push/pull exercise would be a good addition.
sebastian··on Ask HN: Who wants to be hired? (August 2017)
Location: San Diego, CA

Remote: Yes

Willing to relocate: Yes

Technologies: Golang, Python, Javascript, Typescript, Vue.js, Node.js, Relational and NoSQL databases, Scalability, High-availability, High Scale Web Scraping, Microservices, Serverless Architectures, Product Design

Résumé/CV: https://scaletech.co/

https://www.linkedin.com/in/sebastianmacias

Email: sebastian[at]scaletech.co

sebastian··on Google Will Stop Reading Your Emails for Gmail Ads
Another approach would be to have to pay the equivalent of USD 5-10 cents in some email crypto currency in order to allow an unknown sender to put their email on my inbox. If I reply or add the sender to my whitelist the fee is automatically refunded to the original sender and future messages between both parties would won't require a transaction fee any longer.
sebastian··on Google Will Stop Reading Your Emails for Gmail Ads
Some type of proof‐of‐work for email addresses that have not been previously white-listed. Similar to what BitMessage does[1].

Sending emails to new/random contacts shouldn't be that easy anyway.

[1] https://bitmessage.org/bitmessage.pdf

sebastian··on Local and distributed query processing in CockroachDB
Same discussion every time there is a post about CockroachDB. It's time to get over it.
sebastian··on [dead]
Checkout discord. It was developed for gamers but lots of people are now using it for remote pairing.
sebastian··on Pix2code: Generating Code from a GUI Screenshot
It looks like a very good first step. I wonder how structured/semantic the generated HTML would be for engeniers to "hook' the generated code with a backend
sebastian··on Pix2code: Generating Code from a GUI Screenshot
The demo video shows two examples and iOS UI and a web UI, it looks like it's using Bootstrap for the web UIs
sebastian··on Phishing attack uses Unicode characters in domains to clone known safe sites
Different colour + underlined.
sebastian··on Phishing attack uses Unicode characters in domains to clone known safe sites
A good way to fix this would be coloring all Unicode characters in the URL bar.
sebastian··on Show HN: Bootstrap Dashboard for Angular 2 – Free Admin Template
Good job, do you plan to add more components?
sebastian··on Ask HN: Freelancer? Seeking freelancer? (July 2013)
SEEKING WORK - Remote

My background includes 4 university majors (Computer Science, Information Technology/Web Development, Multimedia Design and Media Arts). I have been developing web applications for nearly 9 years.

Although I usually spend most of my time building robust back-ends that can scale on commodity hardware, I'm a well rounded full stack web software engineer. I know the front-end side of things as much as I know the back-end side. I can code any type of UI using cross-browser, valid HTML5/ CSS3/JS quickly and robust.

I have an eye for good design, I can use an existing style guide and build new screens (design, usability, back-end, front-end) all entirely by myself.

I was a django early adopter. I have been using it as my primary web development framework since version 0.96. I have been developing applications (server, desktop and then webapps) in python since about 10 years ago.

A few sample projects I have worked on:

peakery.com crowdstir.com einztein.com championsound.com suggestionbox.com begreennow.com replyforall.com (http://www.treehugger.com/clean-technology/replyforalls-caus...)

Specialties: Python,django (early adopter), MySQL, PostgreSQL, Scalability, High-availability, Performance Optimizations, Cloud computing, System Administration, Linux, Debian, Ubuntu, Memcached, Large-Scale Caching, Key/Value stores, XHTML, CSS, JS, JQuery, Open source technologies, Rapid Prototyping, Usability, A/B testing, Remote project management, Remote hiring, Learning new technologies.

Contact: sebastian at django.pro

sebastian··on Ask HN: How do sites like coinbase.com or mint.com access your bank accounts?
Excellent information. Checking out yodlee and wesabe's ssu.
sebastian··on Meteor 0.4.0: Introducing Spark
But, how much would I need to write to update the data in realtime as it changes in the backend?
sebastian··on Meteor 0.4.0: Introducing Spark
How possible would it be to use something like Spark or Derby.js's Racer in a django site?

I like the realtime concept/behavior but I want to keep developing in django.

sebastian··on Diaspora website redesign, now with more info about the project
If the project takes off and has mainstream adoption I couldn't wait to see a MIT licensed django clone.
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