Hacker News

Top stories

Live mirror
30 storiesupdated just nowView source snapshot
  1. Ollaya – Ollama for open-source, Jev-style decision models (ollaya.dev)
    43comments
  2. Alan Kay: Shannon gave us a way of dealing with noisy channels [video] (youtube.com)
    13comments
  3. Show HN: Jev Plays Pokémon Red (jev-pokemon.vercel.app)
    8comments
  4. Platform-independent SIMD in Go (go.dev)
    120comments
  5. Bug: Border radius has infected VSCode editor (github.com/microsoft)
    1comments
  6. Google's first Suncatcher orbital data center test launches October 1 (arstechnica.com)
    5comments
  7. Advice to a Beginning Graduate Student (2001) (cmu.edu)
    5comments
  8. First Principles Thinking (sunilsadasivan.com)
    68comments
  9. Git-bug: Distributed, offline-first bug tracker embedded in Git (github.com/git-bug)
    88comments
  10. U.S. appeals court upholds designation of Anthropic as supply chain risk (cnbc.com)
    426comments
  11. Supreme Court permits states to use SAVE database for citizenship checks (cyberscoop.com)
    30comments
  12. Pentium II at 600Mhz with Voodoo 3 Emulated on 86Box with M6 Mac Mini (nyaa.sh)
    105comments
  13. Ink and Switch interactive homepage (inkandswitch.com)
    25comments
  14. Meta's Muse appears to use an OpenAI model labeled muse-special (mouse.dev)
    22comments
  15. How video games inspire great UX (2019) (jenson.org)
    4comments
  16. A History of the Chiming Machines at Gloucester's Cathedral and Churches (2017) [pdf] (bgas.org.uk)
    —discuss
  17. Factorio that you can touch (factorio.com)
    71comments
  18. Letterboxd Is Up for Sale, and A24, Sony and the New York Times Are Bidding (worldofreel.com)
    4comments
  19. Amiga Screens: A Primer (datagubbe.se)
    29comments
  20. Show HN: Whiteboard (YC W26) – An open-source IDE for thoughtful software design (github.com/devdotfast)
    127comments
  21. Typst makes big strides (lwn.net)
    6comments
  22. What About Rails? (jardo.dev)
    171comments
  23. Boards of Casio (ambionix.com)
    28comments
  24. Why is the liver so weirdly regenerative? (dynomight.substack.com)
    269comments
  25. CVE-2025-13032: Entering and Breaking the Avast Antivirus Sandbox Part 2 (safateam.com)
    27comments
  26. What happens when you analyze your favorite college football team like the CIA? (cultivatelabs.com)
    7comments
  27. Astronomer watches Starlink satellites sinking to build a 'planetary barometer' (theregister.com)
    6comments
  28. Show HN: Hamilton – a no-internet Android health dashboard, named after my dog (play.google.com)
    11comments
  29. Rails World 2026 Opening Keynote [video] (youtube.com)
    462comments
  30. 2DWillNeverDie (2dwillneverdie.com)
    82comments

Avoiding the babbling-idiot failure in a time-triggered communication system

25 pointsby 4d agoieeexplore.ieee.org
6 comments
4d agoHN ↗

Alan Kay: Shannon Gave Us a Way of Dealing with Noisy Channels

https://www.youtube.com/watch?v=Cjntrqhn8pk

Alan Kay performs an improvisational avant garde layered audio feedback loop about Claude Shannon, live online during Kristen Nygaard's 100-year birthday celebration.

Alan was scheduled to talk about how encountering Simula sparked his early thoughts about objects. During setup, somebody had the live stream playing out loud near an open Zoom mic, so his own voice kept arriving back in his ears about 21 seconds late, over and over.

What he said was not random: "Shannon gave us a way of dealing with noisy channels." And: "I think about that almost every day. I realize what the fuck is going on and it's just so amazing." Shannon's noisy channel coding theorem is the math for exactly the kind of channel that was garbling him as he praised it.

[...]

3d agoHN ↗

We could all do with a bus guardian at times

3d agoHN ↗

Like a time-out timer (TOT) on radios?

When activated, the Time-out Timer starts counting the moment a user begins transmitting. If the transmission continues beyond a pre-set duration, the timer automatically cuts off the transmission. This mechanism compels users to be concise in their communication and relinquish the channel, allowing others the opportunity to transmit.

— https://talkpod.com/blogs/two-way-radio-wiki/what-is-time-ou...

Edit: No, it's more like a scheduled lockout. You can only talk when it's your turn. And the assumption is that the clocks on each node are synced:

Every node has a notion of the global time and uses this notion along with the static schedule to establish when it should send messages.