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xinu2020 commented on What's the deal with Euler's identity?   lcamtuf.substack.com/p/wh... · Posted by u/surprisetalk
JohnKemeny · 13 days ago
Is your argument that complex powers isn't anything?
xinu2020 · 13 days ago
Their argument is that ln(z) where z is a complex number is a multi-valued function, so the statement "Explore why i^i is real number" could be misinterpreted as i^i = a single well-defined real value.
xinu2020 commented on Deloitte to refund the Australian government after using AI in $440k report   theguardian.com/australia... · Posted by u/fforflo
AznHisoka · 2 months ago
>> you keep on hiring consultants until you hear what you want to hear.

Sounds like a job that AI easily replaces

xinu2020 · 2 months ago
Except for the accountability part. That's the main feature of consulting.
xinu2020 commented on Pgactive: Postgres active-active replication extension   github.com/aws/pgactive... · Posted by u/ForHackernews
nico · 5 months ago
Tangential, but related. Is there a way to have a "locally writable" read replica, ie. a secondary db that reads from a primary, but that can also hold local changes that doesn't send back to the primary?

One of the use cases is to have a development db that can get data from production or staging (and doesn't send local changes back)

What I've done usually is have some script/cron/worker run periodically to get data, either via dump or running some queries, create a snapshot, store it in S3, then have a script on the local dev code that gets the snapshot and inserts/restores the data in the local db. This works for many cases, but index building can be a pain (take a long time), depending on the data

xinu2020 · 5 months ago
Curious about this - How would local writes conflicting with remote updates be handled? I can't think of a merge strategy working on all scenario (or even most of the time)
xinu2020 commented on Decomposing a Factorial into Large Factors   terrytao.wordpress.com/20... · Posted by u/surprisetalk
HeliumHydride · 9 months ago
xinu2020 · 9 months ago
For those who are curious how we can construct such a function, and why it looks so funky on the negative side, I strongly recommend this video https://www.youtube.com/watch?v=v_HeaeUUOnc
xinu2020 commented on Rewriting my website in plain HTML and CSS   vijayp.dev/blog/rewrite-p... · Posted by u/arnath
mrweasel · a year ago
I've tried Hugo and Jekyll a few times and they are pretty complicated. If you just want to post something online every now and then, then it might be easier to just to HTML.
xinu2020 · a year ago
Alternatively pick a light-weight template engine from your favorite language and use it to generate the html. More flexible than plain html files and very low learning commitment.

I've been doing that for years and really happy with the result.

xinu2020 commented on Show HN: A Better Log Service   txtlog.net/... · Posted by u/williebeek
herbst · a year ago
On the other side some people (me) are happy to have an actual self hosting setup and not being forced to use a docker setup with unknown overhead.
xinu2020 · a year ago
Why not both? It's not much trouble to publish a Dockerfile while still documenting a normal installation.
xinu2020 commented on Ask HN: What are your experiences with scaling a company?    · Posted by u/surrTurr
xinu2020 · a year ago
I was working for a fintech company that experienced a large growth (in the number of employees). The leadership team was keen to "grow fast" and on the surface it looked good: investors where happy, the company had a not so high yet but steady income (subscription-based) and each team seemed to have a purpose.

But in reality there were many issues: - there was a culture of launching "project/initiative" to justify more hires and promotions, rather than improving on the key issues we had (that nobody wanted to tackle). - People were often switching team after a promotion, for example leading a new team, and leaving their problems behind. - On the technical-side it was extremely tedious to contribute, we started with a monolith, then moved a micro-service architecture (with k8s, kafka etc). There was a push to do things properly, but it translated in over-engineering parts (for the cool stuff) while the valuable not-so-cool stuff was left to rot. At the end we had to maintain multiple things and the engineering effort to do all these migrations was huge, and took us away from doing more valuable work.

Eventually the company couldn't sustain its workforce and we had multiple round of layoffs.

My key learnings are: - Unless you are looking for a promotion before leaving (pump and dump), hiring a lot of people in a short amount of time is bad. - Even in best scenarios, having more employees make things harder and slower. People are competing for projects, there is a need for more communication, more processes, more tools. Having a lean workforce as long as possible, focusing on what's really important is best. - It's okay if we can't do everything we want. Not so many "ideas" are valuable and employees cost - Before hiring for a new project, can't we move other resources? Is this project really important or just a distraction?

xinu2020 commented on Ask HN: Is building a palliative AI companion for people with dementia ethical?    · Posted by u/motohagiography
xinu2020 · a year ago
Why do you suspect it is not ethical?

>What features could make it more ethical?

You should think the other way around, start with an ethical base, and only add features that keep it ethical.

xinu2020 commented on Ask HN: Parents who control their kids' education, when do you introduce LLMs?    · Posted by u/consumer451
xinu2020 · a year ago
I don't think this is much different to "when do you introduce internet"?

Both for "when do you introduce in a supervised setup" and "when do you let them use in an unsupervised setup".

LLMs are new to us, but for them it's not more new than the rest of the internet. It can be harmful, but probably less than social media.

u/xinu2020

KarmaCake day44July 16, 2021
About
Software engineer, Freelancer, London based.

Currently working on https://logql.io

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