Hacker News: 9NRtKyP4

New comment by 9NRtKyP4 in "Using an engineering notebook"

9NRtKyP4 — Thu, 12 Feb 2026 10:59:37 +0000

I don’t use a notebook and have done fine over the years - for those of you that are reading this and getting anxious you’re not doing your job the “right way”. I don’t have a particularly prodigious memory.

I’ve sometimes thought there’s a value to forgetting. If it matters I’ll learn it through repetition, like compression almost. It always seemed like reconstructing things from first principles saves brain space and allows for generalisation and creativity.

New comment by 9NRtKyP4 in "Lennart Poettering, Christian Brauner founded a new company"

9NRtKyP4 — Tue, 27 Jan 2026 20:12:02 +0000

The authors clearly don’t intend this to happen but that doesn’t matter. Someone else will do it. Maybe this can be stopped with licensing as we tried to stop the SaaS loophole with GPLv3?

New comment by 9NRtKyP4 in "Lennart Poettering, Christian Brauner founded a new company"

9NRtKyP4 — Tue, 27 Jan 2026 20:00:46 +0000

Remote attestation is another technology that is not inherently restrictive of software freedom. But here are some examples of technologies that have already restricted freedom due to oligopoly combined with network effects:

* smartphone device integrity checks (SafetyNet / Play Integrity / Apple DeviceCheck)

* HDMI/HDCP

* streaming DRM (Widevine / FairPlay)

* Secure Boot (vendor-keyed deployments)

* printers w/ signed/chipped cartridges (consumables auth)

* proprietary file formats + network effects (office docs, messaging)

New comment by 9NRtKyP4 in "A train-sized tunnel is now carrying electricity under South London"

9NRtKyP4 — Sat, 20 Dec 2025 17:05:22 +0000

It’s not just a tunnel, it’s a game-changing lifeline

The idea that people aren't stupid

9NRtKyP4 — Sat, 08 Nov 2025 19:33:07 +0000

Article URL: https://www.theseedsofscience.pub/p/the-radical-idea-that-people-arent

Comments URL: https://news.ycombinator.com/item?id=45859281

Points: 3

# Comments: 4

New comment by 9NRtKyP4 in "I was alone on shift when Newark air traffic control went dark"

9NRtKyP4 — Wed, 21 May 2025 06:38:22 +0000

https://archive.md/zI0nc

I was alone on shift when Newark air traffic control went dark

9NRtKyP4 — Wed, 21 May 2025 06:17:01 +0000

Article URL: https://www.thetimes.com/us/news-today/article/air-traffic-controller-newark-airport-nj-9zpp3z9ww

Comments URL: https://news.ycombinator.com/item?id=44048765

Points: 3

# Comments: 1

New comment by 9NRtKyP4 in "Ask HN: How do you work in Programming language research?"

9NRtKyP4 — Sun, 11 Jun 2023 13:58:48 +0000

Jane Street has a compilers team who do OCaml: https://signalsandthreads.com/future-of-programming/

The 2-MAXSAT Problem Can Be Solved in Polynomial Time

9NRtKyP4 — Thu, 27 Apr 2023 12:11:24 +0000

Article URL: https://arxiv.org/abs/2304.12517

Comments URL: https://news.ycombinator.com/item?id=35726855

Points: 61

# Comments: 102

LED's Efficiency Exceeds 100%

9NRtKyP4 — Fri, 26 Aug 2022 09:46:08 +0000

Article URL: https://phys.org/news/2012-03-efficiency.html

Comments URL: https://news.ycombinator.com/item?id=32605204

Points: 6

# Comments: 2

New comment by 9NRtKyP4 in "QuantMath: Financial maths library for risk-neutral pricing and risk in Rust"

9NRtKyP4 — Sun, 17 Jan 2021 20:46:25 +0000

It’s still under development but some at Google are writing a quant library in Tensorflow. https://github.com/google/tf-quant-finance

New comment by 9NRtKyP4 in "New – Savings Plans for AWS Compute Services"

9NRtKyP4 — Thu, 07 Nov 2019 08:02:09 +0000

Here’s a link to the actual pricing: https://aws.amazon.com/savingsplans/pricing/

This doesn’t show up for me when googling “AWS savings plan pricing”.

New comment by 9NRtKyP4 in "The Relation Between Mathematics and Physics (1939)"

9NRtKyP4 — Sun, 14 Jul 2019 22:39:50 +0000

> I would suggest, as a more hopeful-looking idea for getting an improved quantum theory, that one take as basis the theory of functions of a complex variable.

Nailed it.

MegaDos TRS-80 Running Windows 8

9NRtKyP4 — Sat, 17 Feb 2018 10:57:03 +0000

Article URL: http://www.mechanicalarcade.com/TRS-80-Conversion.htm

Comments URL: https://news.ycombinator.com/item?id=16400142

Points: 3

# Comments: 0

New comment by 9NRtKyP4 in "Starting an Internet Service Provider"

9NRtKyP4 — Mon, 20 Feb 2017 17:56:16 +0000

200/20 is available from Openreach as fibre-to-the-premises but it's rare and only a handful of providers offer it.

C++ parser for ASX 24 ITCH messages

9NRtKyP4 — Thu, 16 Feb 2017 23:34:19 +0000

Article URL: https://github.com/mbergin/asx24itch

Comments URL: https://news.ycombinator.com/item?id=13664628

Points: 2

# Comments: 0

New comment by 9NRtKyP4 in "Dropbox New Plans: Pay If You Want 2FA"

9NRtKyP4 — Wed, 01 Feb 2017 00:11:19 +0000

I enabled 2FA on my Pro Dropbox account because they allowed my account to be hacked back in August. Now I have to pay for their security mistakes?

New comment by 9NRtKyP4 in "Police seek Amazon Echo data in murder case"

9NRtKyP4 — Tue, 27 Dec 2016 16:58:00 +0000

> There has never been any "study" showing that "women talk almost three times as much as men", although this non-existent "research" has been cited by dozens of science writers, relationship counselors, celebrity preachers, and other people in the habit of claiming non-existent authoritative support for their personal impressions;

TalkTalk's wi-fi hack advice is 'astonishing'

9NRtKyP4 — Wed, 07 Dec 2016 15:08:35 +0000

Article URL: http://www.bbc.co.uk/news/technology-38223805

Comments URL: https://news.ycombinator.com/item?id=13123018

Points: 4

# Comments: 0

New comment by 9NRtKyP4 in "Ask HN: As a hacker and “math person”, how do I learn about finance?"

9NRtKyP4 — Sun, 27 Nov 2016 10:05:46 +0000

Yes. Hull is the canonical, if dry, text graduates in banks are told to read.