bencyoung

5 ms·

1.
by bencyoung 13d ago
If it gained access to the infra of the DC then it could stop people logging in to stop the containers it creates. This is about what happens if it did escape, not how to stop it in the first place. Just a thought experiment, but given the
2.
by bencyoung 13d ago
Will be interesting to see what happens if an AI got access to something like the AWS control plane and could deploy itself within a data centre without permission. Possibly the only way to remove it then would be to physically shutdown the
3.
by bencyoung 5mo ago
Unless your memory allocator runs a form of garbage collection, which most of the advanced ones do! Worst memory performance issue I've ever seen was in a C++ program where the deallocation of a large object graph from one spot complet
4.
by bencyoung 6mo ago
Sounds like the Chronophage clock in Cambridge: https://en.wikipedia.org/wiki/Corpus_Clock . It it's purely mechanical but has odd pauses in the ticks etc
5.
by bencyoung 8mo ago
Sorry for the delay! It's fairly simple. 1. You have a column on your objects you want secured as an LTREE[] 2. You add a GIST index on that column The values should be the different hierarchy paths to access the object starting with a
6.
by bencyoung 8mo ago
Sorry for the delay! It's fairly simple. 1. You have a column on your objects you want secured as an LTREE[] 2. You add a GIST index on that column The values should be the different hierarchy paths to access the object starting with a
7.
by bencyoung 9mo ago
If you're using Postgres then using the ltree module is great for permission systems. Available in RDS too
8.
by bencyoung 11mo ago
Not majorly odd, just an area I thought Rust would be hot on when it comes to performance...
9.
by bencyoung 11mo ago
Having worked in HPC a fair bit I'm not a fan of autovectorization. I prefer the compiled code's performance to be "unsuprising" based on the source and to use vectors etc where I know it's needed. I think in genera
10.
by bencyoung 11mo ago
Odd that c# has a better stable SIMD story than Rust! It has both generic vector types across a range of sizes and a good set of intrinsics across most of the common instruction sets
11.
by bencyoung 11mo ago
Cheapest MSK cluster is $100 a month and can easily run a dev/uat cluster with thousands of messages a second. They go up from there but we've made a lot of use of these and they are pretty useful
12.
by bencyoung 11mo ago
Kafka is great tech, never sure why people have an issue with it. Would I use it all the time? No, but where it's useful, it's really useful, and opens up whole patterns that are hard to implement other ways
13.
by bencyoung 11mo ago
JIT compilation can be faster for compiled languages too, as it allows data driven inlining and devirtualization, as well as "effective constant" propogation and runtime architecture feature detection
14.
by bencyoung 1y ago
I think this is exactly the same approach PyPy used 15 or so years ago! Partially evaluate the language runtime
15.
by bencyoung 1y ago
I almost did a PhD with David but ended up working at Transversal instead, which was a company he co-founded to do some interesting work in the search engine space! It's what got me into software development as a career so I'm alw
16.
by bencyoung 1y ago
The Fens in East Anglia in the UK has a lot of interesting pumping tech. The latest can do 100m3/s ( https://www.edie.net/st-germans-pumping-station-keeps-fens-f... ). If all the pumps failed there would be hundreds of k
17.
by bencyoung 1y ago
I think it's more that western cultural cliches become invisible to western audiences rather than moving on. E.g. the "superhero" is definitely a western cliche. "A lone operative defies the rules to do the right thing b
18.
by bencyoung 1y ago
Dotnet is getting a fully interpreted mode in 10 or 11 so I wonder if they'll switch to that for things like this https://github.com/dotnet/runtime/issues/112748
19.
by bencyoung 1y ago
We have https://www.myenergi.com/ for our car charger and it seems to be able to integrate batteries, charging and panels like you suggest, only you have to go all in. We have parts of it and are tempted to use more, but th
20.
by bencyoung 1y ago
Ok I drilled down a bit and looks like you are right, although I'm still not sure I've built up a clear understanding! ( https://physics.stackexchange.com/questions/187917/thought-e... ). In fact that ques
21.
by bencyoung 1y ago
Seems amazing similar to the changes a junior would make (jump to the solution that "fixes" it in the most shallow way) at the moment
22.
by bencyoung 1y ago
Thanks! Hmm, I think we're talking about slightly different things but it's been too long since I studied it to put it in the right words :) I completely agree that spacetime can be "flatish" for a large block hole, but
23.
by bencyoung 1y ago
Some example PRs if people want to look: https://github.com/dotnet/runtime/pull/115733 https://github.com/dotnet/runtime/pull/115732 https://github.com/dotnet&#
24.
by bencyoung 1y ago
Apart from my MSci in Physics... Perhaps you could post some links to the spacetime diagrams you are talking about?
25.
by bencyoung 1y ago
Well, I disagree. Light literally can't move in a direction that makes it further from the singularity once inside the event horizon. I don't see what space being flat or not locally has to do with that. Check https://e
26.
by bencyoung 1y ago
You can do plenty of experiments to see if you are falling, e.g. hitting the surface of a planet you are falling towards. The event horizon is a surface like any other with a location in space and you can definitely see when you hit it (it&
27.
by bencyoung 1y ago
Consider that every "surface" inside the event horizon is like a stronger event horizon so passing through you'd certainly notice things like not being able to see your feet any more as the light wouldn't be able to trav
28.
by bencyoung 1y ago
Looks very nice but the Absent functionality seems like a potential foot gun to me, easy to remove an entire WHERE clause and blow up a whole table! If I have a filter in sql query it's because I really want it to be used!
29.
by bencyoung 1y ago
It's the usual rabbit hole if you search for it, but there are some useful comments here: https://astronomy.stackexchange.com/questions/58610/would-it... The way I see it is every surface inside an event hori
30.
by bencyoung 1y ago
There are no stable orbits inside the event horizon, and my understanding is even things like atom vibration can't move further from the sigularity so I'm guessing timespans would be limited!

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