Hacker News: Ellipsis753

New comment by Ellipsis753 in "HTTP Strict Transport Security (HSTS)"

Ellipsis753 — Tue, 30 Dec 2025 19:38:41 +0000

Old links to your site might still be http - HSTS prevents that request being in the clear. Also, if you have a man-in-the-middle attack, it doesn't matter if you return a redirect or not as the attacker has already replaced your site with a phishing attack instead of a redirect. HSTS prevents this.

New comment by Ellipsis753 in "An 11-qubit atom processor in silicon with all fidelities from 99.10% to 99.99%"

Ellipsis753 — Fri, 26 Dec 2025 14:09:21 +0000

It should be able to factor 15.

New comment by Ellipsis753 in "Scaling up Prime Video monitoring service reduced costs 90% (archive) (2023)"

Ellipsis753 — Mon, 03 Nov 2025 22:57:31 +0000

I was amused but unsurprised to see that this article was deleted when I looked it up...

Scaling up Prime Video monitoring service reduced costs 90% (archive) (2023)

Ellipsis753 — Mon, 03 Nov 2025 22:36:30 +0000

Article URL: https://web.archive.org/web/20240325042615/https://www.primevideotech.com/video-streaming/scaling-up-the-prime-video-audio-video-monitoring-service-and-reducing-costs-by-90

Comments URL: https://news.ycombinator.com/item?id=45805296

Points: 2

# Comments: 2

New comment by Ellipsis753 in "Unlocking free WiFi on British Airways"

Ellipsis753 — Sat, 25 Oct 2025 08:10:45 +0000

Looks like you were rate limited at the end. They don't rate-limit britishairways.com which is a SNI that you can always access. Lolz.

New comment by Ellipsis753 in "Valorant's 128-Tick Servers (2020)"

Ellipsis753 — Mon, 06 Oct 2025 21:35:13 +0000

It does sound like each server is its own process. I think you're correct that it would be a little faster if all games shared a single process. That said, then if one crashed it'd bring the rest down.

This is one of those things that might take weeks just to _test_. Personally I suspect the speedup by merging them would be pretty minor, so I think they've made the right choice just keeping them separate.

I've found context switching to be surprisingly cheap when you only have a few hundred threads. But ultimately, no way to know for sure without testing it. A lot of optimization is just vibes and hypothesize.

New comment by Ellipsis753 in "Redis is fast – I'll cache in Postgres"

Ellipsis753 — Fri, 26 Sep 2025 15:01:20 +0000

Great article. Not understanding the hate.

I think the jist of it is, you probably have sufficiently low requests/second (<1000) that using postgres as a cache is totally reasonable - which it is. If your hitting your load tests and hardware spend, no need to optimise more.

New comment by Ellipsis753 in "Intel AVX10 Drops Optional 512-Bit: No AVX10 256-Bit Only E-Cores in the Future"

Ellipsis753 — Wed, 19 Mar 2025 12:45:40 +0000

Is this saying that intel will support _only_ 512 instructions? (And not 256).

Or that it'll support _both_ 256 and 512 instructions going forwards (and stop doing the nonsense where some cores support 512 and others don't?)

New comment by Ellipsis753 in "Advent of Code 2024"

Ellipsis753 — Mon, 02 Dec 2024 10:42:08 +0000

This is how most of the top of leaderboard works.

New comment by Ellipsis753 in "Please do not write below the line"

Ellipsis753 — Mon, 21 Oct 2024 20:30:05 +0000

Weirder still, the discounts stack! So blind people can benefit from buying a black-and-white TV for an additional discount.

I've given this a lot of thought in the past. The best I could come up with is that "legally blind" could still allow for someone with _very poor_ (colour) vision...

New comment by Ellipsis753 in "Beating the CAP theorem checklist (2013)"

Ellipsis753 — Sat, 27 Jul 2024 10:52:59 +0000

Ehhh. Feel like CAP theorem is a bit overrated. It's correct from a theoretical purist point of view, but you can still solve many of these kinds of issues in practice. (Similarly, people overstate the halting problem - which can be solved for computers with finite memory.)

New comment by Ellipsis753 in "Bollards: Why and What"

Ellipsis753 — Mon, 06 May 2024 16:56:05 +0000

Let's plug my own "joke" website about my love of Bell Bollards: https://bellbollard.com/

We have bell bollard t-shirts: https://www.zazzle.co.uk/be_more_bollard_t_shirt-23500842774...

And we like to take photos pretending to be bell bollards: https://twitter.com/search?q=%23bellbollard

If anyone else wants to get in on this action, you're more than welcome. :D

New comment by Ellipsis753 in "Forget billions of years: Researchers have grown diamonds in just 150 minutes"

Ellipsis753 — Fri, 26 Apr 2024 20:48:37 +0000

Why would this be easier than just making a diamond?

New comment by Ellipsis753 in "Amazon ditches 'just walk out' checkouts at its grocery stores"

Ellipsis753 — Wed, 03 Apr 2024 15:45:02 +0000

Gutted to hear this.

I used these in London and they were magical and extremely convenient. I would show them to visiting friends as if they were one of London's main tourist attractions!

I knew they relied on some manual labor (bills were delayed), but assumed this was only an intermediate step to collect more real-world training data (until they sorted out the AI).

I still think this is the future though. They could reduce staffing costs and free-up floor space that would otherwise be used for self-checkouts. All the while actually drastically improving the customer experience too.

If someone cracks it, it may make it impossible for other supermarkets to complete economically.

As a fun aside, all the stores were incredibly over-staffed and helpful. If you couldn't install the app they had a browser-based fallback (type "fresh code" into the amazon searchbar on a mobile). They could also lend you a battery bank if you were low on battery. I think they even had phones to lend out to those without smartphones. It was all very optimized around customer experience first and foremost and with no real attempt for the stores to be profitable.

New comment by Ellipsis753 in "Ask HN: Who wants to be hired? (April 2024)"

Ellipsis753 — Wed, 03 Apr 2024 10:21:32 +0000

Location: London, UK

Remote: Yes, but hybrid/in-person preferred

Willing to relocate: No

Technologies: Rust, C, C++, Linux, AWS, TypeScript

Résumé/CV: https://istherecake.com/Shanee-Vanstone.pdf

Email: shanee@ifnotequal.com

New comment by Ellipsis753 in "Ask HN: Did you encounter any leap year bugs today?"

Ellipsis753 — Fri, 01 Mar 2024 11:00:06 +0000

We had a bug on the 1st of this month. Some billing code liked to invoice on the last day of the month and failed to account for this month having an extra day. Interesting it happened as soon as the "leap month" started. Easily fixed though.

New comment by Ellipsis753 in "Building a Password Cracker in 2024"

Ellipsis753 — Sat, 27 Jan 2024 11:41:13 +0000

This is for cracking password _hashes_. Most websites won't store a user's plain-text password but will only store the hash of it. Then a hack/exploit might later reveal the website's password hashes. This program helps you turn the hash back into the original password. Assuming you have a hash already, you own the hash, so it's not possible for anyone to impose a rate limit on how quickly you can attempt to break it.

New comment by Ellipsis753 in "Where Have All the Websites Gone?"

Ellipsis753 — Tue, 09 Jan 2024 16:49:20 +0000

My cousin runs a very small home-made html blog. I really like it and it gives me that early 2000s nostalgia. I'm sure he'd be psyched if some people here were to read it.

https://deadvey.com https://deadvey.com/blog/index.html https://deadvey.com/blog/feed.xml

New comment by Ellipsis753 in "Macs can now inform Apple if any liquids have been detected in the USB-C ports"

Ellipsis753 — Tue, 09 Jan 2024 11:47:10 +0000

I doubt it. My guess is that you have speakers/headphones connected to your dock and they're picking up some kind of transients when you plug it in. Capacitors charging can also have some sound, but it's usually quite high pitched. If you're docking station has an external power source, you might find that adding/removing/changing it helps. Or connecting speakers/headphones via a usb DAC.

New comment by Ellipsis753 in "The One Billion Row Challenge"

Ellipsis753 — Mon, 08 Jan 2024 23:34:17 +0000

Interestingly, because your program runs on Linux and is run 5 times, Linux will almost certainly cache the 12gb file to RAM on the first invocation.

This means that future invocations don't have to load the file from disk. This also makes it pretty critical that your program doesn't use more than 16gb of ram itself (out of the server's 32gb) or it'll push the file out of cache making future invocations of your program slower.