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Richard Feldman Profile
Richard Feldman

@rtfeldman

Followers
17K
Following
33K
Media
84
Statuses
2K

Let’s go with the ambitious approach.

Philadelphia, PA
Joined September 2008
Don't wanna be here? Send us removal request.
@rtfeldman
Richard Feldman
2 years
If you're curious about what it feels like to use @roc_lang or @zeddotdev, have I got a video for you! This is me live-coding a Roc CLI and web server in Zed, explaining as I go: https://t.co/C2gRiy4mJ2 Thanks to Func Prog Sweden for hosting the event and editing the video!
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@matthiasendler
Matthias
2 days
Just released my interview with @rtfeldman about rewriting Roc from Rust to Zig. We talked about compile times (20s vs 1.3s), when the borrow checker is overkill, and why comptime can't just be bolted onto Rust. https://t.co/NRjDiuT5fX #rustlang #rust #zig #podcast
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corrode.dev
Building a new programming language from scratch is a monumental undertaki…
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@isnit0
Joe is in SF
4 days
Standing room only! Let’s go!
@zeddotdev
Zed
4 days
Save your spot! https://t.co/1KVUiVxNBS Plus we’ll kick off with talks by @as__cii on DeltaDB and @isnit0 on building voice agents! 🎙️
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@josevalim
José Valim
4 days
We're excited to join @zeddotdev, @jetbrains, @marimo_io and others implementing the Agent Client Protocol. Bring Claude Code, OpenAI Codex, or your favorite third-party agent to Tidewave and all of these tools today!
@josevalim
José Valim
4 days
It is finally here: Tidewave now supports Claude Code and OpenAI Codex. Tidewave unlocks the full-stack potential of your favorite coding agent by tightly integrating it with your web app and web framework at every layer, from UI to database. More info 👇
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@Tesla
Tesla
17 days
Model 3 and Model Y battery packs retain 85% of their capacity on average after 200K miles of driving We also offer an 8 years or 120,000 miles battery warranty, whichever comes first
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@zeddotdev
Zed
5 days
Trust in AI is declining. Google's @addyosmani breaks down why favorable views of AI coding dropped from 70% to 60% in just two years and what the "70% problem" means for your workflow. https://t.co/5Dgfw8LpVj
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@zeddotdev
Zed
5 days
A packed room, overflowing wait list, and a few impromptu demos of people sharing cool stuff they built using Zed. Appreciate everyone who came out and shared an evening with us. We'll be back in Berlin soon. 🇩🇪 😍 Big thanks to @gdgberlin for partnering with us!
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@Madisonkanna
Madison Kanna
8 days
@jamonholmgren @rtfeldman @rtfeldman's course is so good!
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@realtordotcom
Realtor.com
2 days
Only 3 in 10 Veterans know about 0% down home loans. Join our mission to help veterans find their way home.
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@rtfeldman
Richard Feldman
8 days
This is indeed a masterpiece of screen capture timing. 🤣
@jamonholmgren
Jamon
8 days
Because I don't have a CS degree, I've been going back and brushing up on my fundamentals. It's been fun and I'm filling in a lot of gaps. For C, I'm going through @rtfeldman's Frontend Masters course (Frontend Masters is a lot more than frontend, btw), which is excellent.
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@amateurhuman
Chris Kelly
9 days
Got to come full circle with @nathansobo with helping launch Atom 1.0 way back in the day, and now bringing Auggie to @zeddotdev today. 10 years in the making.
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@zeddotdev
Zed
9 days
Augment Code (@augmentcode) and Opencode (@opencode) are now available in Zed. 🎉 Both agents run natively through ACP. Install them in seconds from the extensions store and use them alongside Claude Code, Gemini CLI, or Codex.
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@opencode
OpenCode
10 days
1 click in @zeddotdev
@rekram11
Aiden Cline
10 days
OpenCode now has a @zeddotdev extension. Install and start with 1 click. No login required.
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@elijahliststeve
Steve Shultz
18 days
Three months of confusion. One revelation: God was listening the whole time. Get the rest of the story on my page.
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@rtfeldman
Richard Feldman
10 days
In the typical (underspecified) explanation, you don't know whether the host revealed the non-prize by chance or by design. If it was by design, then switching improves your odds. If it was by chance, then switching neither harms nor helps your odds...so might as well switch!
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@rtfeldman
Richard Feldman
10 days
As an aside, the classic Monty Hall Problem is supposed to be about probabilities, but if you allow game theory to be involved, you can arrive at the "always switch" conclusion anyway:
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@rtfeldman
Richard Feldman
10 days
As (under-) specified, the correct answer is either "about ½" or "51.2% based on current global averages." "I have a kid, what are the odds that it's a boy?" "About 50-50." "FYI that kid has a brother born on a Tuesday. Now what's your answer?" "…same?" "MATH SAYS NO AHAHA" 🙄
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@rtfeldman
Richard Feldman
10 days
I agree on both counts. "The Monty Hall Problem Problem" is that the typical explanation of "The Monty Hall Problem" omits critical information (specifically, that the host had no chance of opening the door with the prize). The OP this is responding to has the same problem.
@htihle
Håvard Ihle
13 days
@TomVaid @probnstat @paulg Yea, I’ve argued with my share of people who, slightly condescendingly, thought they understood the monty hall problem, and then underspecified it to me. Ends up with me trying to explain how you need a Bayesian model of the host to come up with your subjective probabilities for
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@CelsiusOfficial
CELSIUS Energy Drink
2 months
Spritz Vibe. Limited Edition. Frosted over & fresh for the season, Spritz Vibe Sparkling Snowball Frost Limited Edition is here! CELSIUS. LIVE. FIT. GO.
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@zeddotdev
Zed
12 days
AI tools get you 70% of the way there fast. Then you hit a wall. @addyosmani has been embedded in agentic engineering for years, watching what works and what falls apart in real teams. Thursday at 12pm ET, he's joining @rtfeldman to talk about what's actually working.
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@zeddotdev
Zed
14 days
GPUI application spotlight. 🔦 Fast Forward: A window switcher for macOS!
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@rtfeldman
Richard Feldman
15 days
Anyone know of a place that sells a shirt with the Ghostscript tiger on it? (I'm aware that "upload an image and they'll put it on a shirt" sites exist; I'm not looking for one of those!)
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@rtfeldman
Richard Feldman
15 days
I have lost count of how many agents have adopted ACP since we announced it (checks watch) 2 months ago 😳
@Kimi_Moonshot
Kimi.ai
15 days
Introducing Kimi CLI Technical Preview & Kimi For Coding! Kimi CLI powers your terminal: - Shell-like UI + shell command execution - Seamless Zsh integration - MCP support -Agent Client Protocol (now compatible with @zeddotdev) More features incoming!
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@annmcelhinney
Ann McElhinney 🧡
2 days
⚠️CAUTION: SHOCKING CONTENT The cover-up is always worse than the crime... and this crime is pure evil. This 2-minute clip comes from the verbatim film 'The Grooming Gangs Cover-Up,' which details the heinous acts done to children uncovered at trial. @elonmusk @DominicFrisby
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