Hacker News: probabletrain

New comment by probabletrain in "David Attenborough's 100th Birthday"

probabletrain — Fri, 08 May 2026 23:54:07 +0000

They're officially yellow. Many people (~50% in my experience) perceive this colour as green though.

> Tennis balls are fluorescent yellow in professional competitions

https://en.wikipedia.org/wiki/Tennis_ball

Earth's First Personal Robocar

probabletrain — Thu, 23 Apr 2026 18:19:40 +0000

Article URL: https://www.tensor.auto/

Comments URL: https://news.ycombinator.com/item?id=47879382

Points: 2

# Comments: 0

New comment by probabletrain in "All your agents are going async"

probabletrain — Wed, 22 Apr 2026 16:35:48 +0000

> Looking at the OpenClaw model, where the conversation history is in the chat channel and the agent process and LLM provider are both separated from that, you can’t build the same design on Cloudflare or Anthropic

Yes you can - durable objects do exactly what the "Ably pub/sub channel transport" diagram describes. And it's even easier with the cloudflare agents SDK. This article strawmans the capabilities of competing infra.

New comment by probabletrain in "Native Instant Space Switching on macOS"

probabletrain — Thu, 09 Apr 2026 20:00:14 +0000

I use https://rectangleapp.com/ and enjoy it. I have shortcuts to move windows to the left/right half of the screen, and cycle between monitors. This, combined with native cmd+tab and cmd+` is enough for me.

New comment by probabletrain in "Waymo Safety Impact"

probabletrain — Thu, 19 Mar 2026 22:14:47 +0000

I know that anecdotal experience is definitionally just that, anecdotal. But I've had a handful of attentive London cabby experiences (and enough in-Waymo experiences) that give me conviction that Waymos are far safer than them. They're out there driving all day every day, it's obvious to me that a Waymo driver is going to be safer than even a professional.

One cabby pulled out of a t junction to end up alongside me on a motorbike – a Waymo would never do that.

New comment by probabletrain in "Waymo Safety Impact"

probabletrain — Thu, 19 Mar 2026 21:28:18 +0000

recently (past couple of months) they've been much more aggressive in the ways that make a good driver a good driver - confident and assertive when they should be. for me this has anecdotally been a massive improvement

New comment by probabletrain in "Waymo Safety Impact"

probabletrain — Thu, 19 Mar 2026 21:25:32 +0000

If you were choosing between getting into a Waymo or a car driven by a human driver (where Waymo operates, for a route that Waymo would do), the data shows that the Waymo is safer.

New comment by probabletrain in "Bubble Sorted Amen Break"

probabletrain — Thu, 12 Mar 2026 19:06:43 +0000

it's an application built with webgl that plays audio, rather than just an audio player

New comment by probabletrain in "Bubble Sorted Amen Break"

probabletrain — Thu, 12 Mar 2026 19:05:30 +0000

media sound is generally unaffected by the silent mode toggle, which apple suggests is only for notifications. but the toggle inconsistently affects media, muting some things but not others. it's incredibly frustrating. android has much better audio controls for notifications, media, alarms, and vibrate.

New comment by probabletrain in "Anthropic, please make a new Slack"

probabletrain — Sat, 07 Mar 2026 00:53:54 +0000

> We need Claude and Claude Code, with their skills and plugins, with their context, to be first-class participants in our company's Slack. But this problem can't be solved by a Slack integration because of another problem: data access.

Yes it can? We have agents in Slack as first class participants. They can even use Slack search.

Improving React page performance with AI agents

probabletrain — Wed, 18 Feb 2026 16:54:32 +0000

Article URL: https://www.metaview.ai/resources/blog/improving-react-page-performance-with-ai-agents

Comments URL: https://news.ycombinator.com/item?id=47063121

Points: 1

# Comments: 0

New comment by probabletrain in "`satisfies` is my favorite TypeScript keyword (2024)"

probabletrain — Sat, 22 Nov 2025 23:53:48 +0000

I think there’s a difference between what’s expected/acceptable for library code vs application code. Types like this might be hard to understand, but they create very pleasant APIs for library consumers. I’ve generally found it very rare that I’ve felt the need to reach for more complex types like this in application code, however.

RXJS’s pipe function has a pretty complex type for its signature, but as a user of the library it ‘just works’ in exactly the type-safe way I’d expect, without me having to understand the complexity of the type.

New comment by probabletrain in "Interactive Double Pendulum Playground"

probabletrain — Wed, 08 Oct 2025 10:01:57 +0000

> This whole site smells off vibe coded jank.

A vibe-coded double pendulum sim should produce a much better result than the physics on this page. Claude Code made this just now off one prompt, the physics are much better: https://keir.is/swinging

New comment by probabletrain in "Zod 4"

probabletrain — Mon, 19 May 2025 16:58:08 +0000

Not sure how other stacks solve this, but with GraphQL the backend defines a `User` type with a full set of fields, and the client specifies only the fields it wants to query. And with codegen you get type safety.

So on the /posts page the client asks for `{ user: { id, posts: { id, content }[] } }`, and gets a generated properly-typed function for making the query.

New comment by probabletrain in "Zod 4"

probabletrain — Mon, 19 May 2025 16:00:42 +0000

In an ideal world you'd have one source of truth for what the shape of a User could be (which may well be a discriminated union of User and AnonymousUser or similar).

Without fullstack TS this could look something like: (for a Python backend) Pydantic models+union for the various shapes of `User`, and then OpenAPI/GraphQL schema generation+codegen for the TS client.

New comment by probabletrain in "Zod 4"

probabletrain — Mon, 19 May 2025 15:51:37 +0000

GraphQL is another one, with schema introspection and codegen for queries and types.

New comment by probabletrain in "The Barbican"

probabletrain — Mon, 12 May 2025 16:19:04 +0000

> all the photos where shoot with the Leica M11 + 35mm Summilux FLE

These photos look great, but I'm having a hard time figuring out exactly why.

The Barbican certainly looks better here than from what I remember of seeing it through the naked eye.

Cloudflare Acquires Outerbase

probabletrain — Mon, 07 Apr 2025 15:57:54 +0000

Article URL: https://www.cloudflare.com/press-releases/2025/cloudflare-acquires-outerbase-to-expand-developer-experience/

Comments URL: https://news.ycombinator.com/item?id=43612903

Points: 4

# Comments: 1

New comment by probabletrain in "Writing a tiny undo/redo stack in JavaScript"

probabletrain — Thu, 27 Mar 2025 10:59:43 +0000

Navigation isn't usually "undo", conceptually.

New comment by probabletrain in "Sync Engines Are the Future"

probabletrain — Fri, 21 Mar 2025 11:31:13 +0000

> Previous sync engines really want you to sync all data

Linear had to do all sorts of shenanigans to be able to sync all data, for orgs with lots of it – there's a talk on that here:

https://www.youtube.com/watch?v=Wo2m3jaJixU&t=1473s