HNHacker News
TopNewBestAskShowJobs

xarope

1,442 karma · joined February 6, 2014

email: xarope425 at gmail dot com

[ my public key: https://keybase.io/phing; my proof: https://keybase.io/phing/sigs/A9vBGkxFpuJoKe5x5mJCYTJpb6wodoyO-MehJSRnjUc ]

CIO/CTO for the last 20+ years (databases and ecommerce, software development, cyber security and production deployments). Open to remote work opportunities where collaboration is required between UTC+4 to UTC-+12

submissionscomments
xarope··on Are we repeating the telecoms crash with AI datacenters?
I dunno, I switch between grey and gray all the time; comes with having worked in so many different countries.
xarope··on Reverse engineering a $1B Legal AI tool exposed 100k+ confidential files
there's a recent one about using poetry to bypass safeguards

... rummages around...

here you go:

https://arxiv.org/abs/2511.15304

xarope··on Ecosia: The greenest AI is here
your answer seems very specific on joules. Could you explain your calculations, since I cannot comprehend the mapping of how you would get a liter of gasoline to 16.8m tokens? e.g. does that assume 100% conversion to energy, not taking into account heat loss, transfer loss, etc?

(For example, simplistically there's 86400s/day, so you are saying that my desktop PC idles at 350/86.4=4W, which seems way off even for most laptops, which idle at 6-10W)

xarope··on Frequently Asked Unicycling Questions
makes me a feel a little bit better that they deigned to show a fall (~1:46mins in).

some of those slopes I would have problems just hiking down (the scree, the pain)!

xarope··on Why I stopped using JSON for my APIs
I'm pretty sure protobuf ignores new fields (if you add; assuming you add as an append, and not change the field ordering), and it recommends you not to remove a field to ensure backward compatibility.
xarope··on 250MWh 'Sand Battery' to start construction in Finland
would someone give an ELI5 on how a sand battery works? Is it just purely thermal mass, just with tons of sand?
xarope··on Tell HN: Happy Thanksgiving
Happy thanksgiving all. Switched from ./ to HN and haven't regretted a single day. Hope you all have a great one!
xarope··on Why Nietzsche matters in the age of artificial intelligence
I'm a member of the ACM, so I would report this article.

However, I think the author may just have made some mistakes and mixed up/-1'd their references, since the 2023 report is actually #2

2. Di Battista, A., Grayling, S., Hasselaar, E., Leopold, T., Li, R., Rayner, M. and Zahidi, S., 2023, November. Future of jobs report 2023. In World Economic Forum (pp. 978-2).

Similarly, Footnote 7 probably should probably point to #8

8. Nietzsche, F. and Hollingdale, R.J., 2020. Thus spoke zarathustra. In The Routledge Circus Studies Reader (pp. 461-466). Routledge.

xarope··on Canadian military will rely on public servants to boost its ranks by 300k
shooting a rifle is "easy" to learn. That's why long guns are used. Hold+brace, point, aim reticle/scope, squeeze.

handguns are harder, since you can't brace the stock against your shoulder, but need to learn how to brace with your wrists and arms.

anti-tank weapons a bit harder still, since you need to maneuver properly and have multiple shooters at the same target. Also, I laugh/smirk everytime I see a movie where someone uses a LAW indoors or in an enclosed space/with someone standing behind.

(I'm ignoring grenades; suffice to say it's not as easy to pull the pin with your teeth as you think)

I think the hard part isn't the shooting, but the tactical movement side; L shape ambush or fire formation when under fire, or presence of mind to seek to leapfrog or flank, ability to communicate under pressure instead of just hunkering down or screaming your head off. It gets complicated very fast since there are vastly different tactics used in forest/vegetation versus urban warfare, and choosing the wrong tactic will get you shot fast (think chess openings; choose the wrong one and unless you are an expert - which you will not be with 1 week of training, you will get mated fast).

xarope··on Building a 2.5kWh battery from disposable vapes to power my workshop [video]
Someone write a novel please. Not sure who will be more appropriate: Stross (more fun?), Stephenson (more of a slog through the first 600 pages, then an abrupt 180 and frenetic action in the last 100 with newly introduced, yet game-changing characters?).
xarope··on Asus Announces October Availability of ProArt Display 8K PA32KCX
I've been toying with getting one of these with 128GB of RAM. What's your opinion (especially since you have compared it to thinkpad/xps)?
xarope··on OpenAI signs $38B cloud computing deal with Amazon
it's funny until you realise your pension fund invested heavily in AI and are now down 30%
xarope··on Paris had a moving sidewalk in 1900, and a Thomas Edison film captured it (2020)
what color was the bike the ape was riding, when the terrorist with the blue handlebar threw his nails?
xarope··on Men need twice as much exercise as women to lower heart disease risk
I believe there are plenty of studies which show that #1 this is most effective with a strong base, and #2 this regime is only effective for 8-12 weeks, at which point in time you stall in progress, and need to go back to base building again.
xarope··on Men need twice as much exercise as women to lower heart disease risk
I'm not sure about running specifically (nor this mapping of 5 hours to 30 miles, since depending on your capability as a runner, 5 hours could mean 50+ miles), but cyclists, x-country skiers, triathletes[0] etc rack up more than 5 hours a week, and they are the ones with the massive VO2 maxes, in comparison to the runners who have to suffer from the mechanical impact of running.

[0] as a former wanna-be triathlete, I'd run 2x2 hours a week, swim 2x2 hours a week, cycle 2x5 hours a week. That's probably minimal to be able to complete an ironman, and I'm sure the sub 9 hour folks are putting in twice that, which would be 18 hours[1] to 36 hours of training a week.

[1] that's why I stopped; I figure I can spend about 10-12 hours a week on "fun" exercise including social stuff. Triathlon training on the other hand is very solo intensive.

xarope··on It's insulting to read AI-generated blog posts
so this is the danger. If you are an expert in the content, you'll realize the AI slop.

If you are not an expert, you'll think the AI is amazing, without realizing the slop.

I'll rather do without the AI slop, thanks.

xarope··on It's insulting to read AI-generated blog posts
you mean we will get even more of these sort of useless comments?

  // loop over list and act on items
  for each _, item := range items {
    item.act()
  }
xarope··on 10M people watched a YouTuber shim a lock; the lock company sued him – bad idea
That's exactly what I've seen too, either a grinder or just a crow bar.
xarope··on Retiring Windows 10 and Microsoft's move towards a surveillance state
go for it (upgrade to linux). My T480s is still my goto laptop when I'm travelling (if I lose it, no biggie - encrypted home dir, meanwhile it can last for 5-7 hours playing videos, running webapps etc), versus my work laptop on windows 11 dying after 2+ hours.
xarope··on Google Pixel 10 Pro Fold explodes during JerryRigEverything's durability test
scratches aluminium with knife - me: "stop, stop!"

pours dirt and makes crunchy hinge noises - me: "stop, stop!"

holds lighter to screens - me: "stop, stop!"

bends phone backwards, it breaks at the antenna line - me: "stop, stop!"

smoke comes out - me: "pretty... I wonder when the smoke detector is going to... ah about 20s"

xarope··on Android's sideloading limits are its most anti-consumer move
with all these folding phones and e-ink mobile sized e-readers having gone through several generations, I'm beginning to think the next big kickstarter[0] is a dumb e-ink phone/wifi modem connected as a 5g modem to an amoled linux tablet.

[0] No royalties required if you pick up my "fantastic" idea, just send me a free device

xarope··on Queueing to publish in AI and CS
not sure how many conferences you have been to, but (1) abstracts are filtered, since conferences probably get 100s of abstracts for every slot they have available, some of which end up being converted to workshops or breakout panel discussions to accommodate interesting topics, and (2) I've seen presentations where "lively" discussions have happened between the presenter(s) and the audience.
xarope··on Exploit allows for takeover of fleets of Unitree robots
yes, laundry, folding and ironing clothes, taking out the garbage, so that us humans can then have more free time to contemplate the mysteries of the universe/work harder.

not - take our jobs so we have to keep "reskilling" every 10 years... oh wait, according to accenture, we'd be un-reskillable after 10 years, so never mind.

xarope··on Can a model trained on satellite data really find brambles on the ground?
isn't this the same findings as the old "we trained to identify huskies, but instead we identified snow" problem?
xarope··on From Rust to reality: The hidden journey of fetch_max
looks around room, heads nodding.

Ah, a magician. welcome.

xarope··on Is a movie prop the ultimate laptop bag?
warning: all tow floats do leak in the storage compartment, especially if you do swim with it (as opposed to sitting on the beach), so if you really intend to put a laptop in, make sure to put it into a proper water tight sleeve/ziplock bag, e.g. an aloksak.
xarope··on What if we treated Postgres like SQLite?
You got my hopes up, but it's WASM for now, not something I could add into a golang [1] or python app and have running like sqlite. OK, still hoping...!

[1]https://github.com/electric-sql/pglite/issues/89

xarope··on Why your outdoorsy friend suddenly has a gummy bear power bank
I assume that quarter of a roll of TP has the cardboard inner taken out

Disclaimer: had to run an multi-stage ultra in the sahara, weighed everything, finished with 1xpacket of carbs+hydration that was right at the bottom of the bag, was upset with myself that I didn't use it for the last day. That's like almost 200 calories I could have used to keep myself warm at night (the desert gets cold at night).

xarope··on Are Rolex watches cheaper at an airport?
still kicking myself for not buying a stainless steel daytona when I had the chance.

otoh it's now only x3 the price I would have bought it for, and I probably would have worn it to death, so maybe it was money well not-spent.

xarope··on Robert Redford has died
I think you are right. What did it sound like? The road? When you were in the trunk, the last time you were kidnapped, what did the road sound like?

/j

← PreviousPage 3 of 24Next →