galeaspablo

7 ms·

31.
by galeaspablo 2y ago
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32.
How water controls the speed of muscle contraction(phys.org)
34 points by galeaspablo 2y ago|8 comments
33.
Queuing Theory: Optimal Consumption with Adaptive Load(ambar.cloud)
1 points by galeaspablo 2y ago|0 comments
34.
by galeaspablo 2y ago
Thanks for sharing your journey. Did you consider open sourcing earlier? Ie as a means of getting distribution / more customers at the price of giving some value away for free?
35.
by galeaspablo 2y ago
“Dumb” could be reworded ;) I would say “irrational when it comes to costs”. Not all developers ask questions such as: Does paying 10K for convenience save me and my team more than 10k worth of time? Does this vendor make it easy to migrate
36.
by galeaspablo 2y ago
Oh I see. Yeah it does the job. :)
37.
by galeaspablo 2y ago
Margins are high. 30-80% Source: I run a cloud company and have plenty of friends in the space.
38.
by galeaspablo 2y ago
As in emulators for different devices a la browser stack. This is more or less a solved problem IME through vendors. Or did you mean something else?
39.
by galeaspablo 2y ago
We’ve experimented with this at Ambar. 4000 CAC can be good or bad depending on the LTV of your customers. But if you can indeed get something reproducible you can work on optimizing if you’re within the order of magnitude of being profitab
40.
Provably Correct Data Streaming [pdf](docs.ambar.cloud)
3 points by galeaspablo 2y ago|0 comments
41.
by galeaspablo 3y ago
> your standard may vary. Agreed. My overall / initial point was that I can’t say the time to crack = the time to brute force and start talking about the age of the universe. Even if we had to wait 10,000 years for cryptanalysis to
42.
by galeaspablo 3y ago
Again, I didn’t say symmetric cryptography :)
43.
by galeaspablo 3y ago
Placing no time constraints, my gut tells me it’s almost inevitable those breakthroughs will eventually come. Either in mathematics or quantum computing. Or both. Namely I’d ask when not if. My opinion is that short of the one time pad, we
44.
by galeaspablo 3y ago
No. Hash functions can be used outside of symmetric encryption. Which is the wording I used. In any case, the overall point remains. Short of the one time pad you can’t build a provably flawless scheme.
45.
by galeaspablo 3y ago
We will be able to crack today’s encryption algorithms in the future because we’ll find flaws in them. In other words, one day brute force won’t be necessary! Have a look at this post, which illustrates this reality being true for hash func
46.
by galeaspablo 3y ago
The 2021 paper I posted does focus on 2015 CLWW, but the 2021 paper also buckets Lewi Wu as non ideal. The Lewi Wu paper is reference [17].
47.
by galeaspablo 3y ago
Precisely!!! Even ORE, a supposed improvement on OPE, is flawed. http://users.cs.fiu.edu/~mjura011/documents/Jurado_2021_CSF%...
48.
by galeaspablo 3y ago
“So, you can encrypt your users’ dates of birth, in such a way that anyone with the appropriate keys can query the database to return, say, all users over the age of 18, but an attacker just sees unintelligible gibberish.” Dangerous oversim
49.
by galeaspablo 3y ago
I love this question. Would be great to hear back from Confluent about this. One safety mechanism I can think of is that the replicas will detect the leader is down and trigger leader election themselves. Or that upon restart the leader rea
50.
by galeaspablo 3y ago
Nah, I dug deeper into this. Right conclusion, wrong reasoning. The reason KRaft turns out to be fine is because the KRaft topic does fsync! Source: https://cwiki.apache.org/confluence/display/KAFKA/KIP-595%3A
51.
by galeaspablo 3y ago
Two comments here. 1) What about Kafka + KRaft, doesn't that suffer the same problem you point out in Redpanda? If so, recommending to your customers to run KRaft without fsync would be like recommending running with a Zookeeper that s
52.
by galeaspablo 4y ago
How could I match an incoming unhashed value to an existing salted hash?
53.
Measurement of W boson mass suggests Standard Model needs improvement(phys.org)
13 points by galeaspablo 5y ago|0 comments
54.
by galeaspablo 5y ago
Sure, but ‘names’ don’t explain how they do what they claim to do. Another reply kindly provided references to publications (which I couldn’t find myself) — they made for great reading. You seem to know their work, so if you have further pu
55.
by galeaspablo 5y ago
This is exactly what I was looking for. Thank you. It’s a shame fundamental publications aren’t part of PR articles. I’d also love to see better details on their website. Oh well, I cant expect everything to work like academia — c’est la vi
56.
by galeaspablo 5y ago
Those products are built on time synchronization. E.g., a latency measurement needs a _true_ difference between the timestamps of two servers.
57.
by galeaspablo 5y ago
Yup. Going back to the principles of distributed systems, I’m really wondering how “NTP but machine learning” can be used to minimize the clock skew to hundreds of nanoseconds with software only. The RTT between two servers can vary a lot —
58.
by galeaspablo 5y ago
There’s a difference between causality ordering and global total ordering. Lamport timestamps and vectors help you get causality ordering. This is not enough for Spanner. Spanner needs total global ordering. A perfect real time clock would
59.
by galeaspablo 6y ago
This resonates. Executed correctly, kindness is not mutually exclusive from assertiveness. E.g. It is possible to make a complaint at a restaurant in a factual way and with a smile. E.g.2. Giving hard feedback with a smile, and constructive
60.
by galeaspablo 6y ago
If you haven’t seen it already, I recommend the recent discussion ( https://news.ycombinator.com/item?id=23489068 ) on, “MIT, guided by open access principles, ends Elsevier negotiations” ( https://news.mit.edu&#x2F

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