HNHacker News
TopNewBestAskShowJobs

scrumper

5,042 karma · joined June 6, 2012

Ex-developer and musician. I also do vintage electric piano repair and design and build vacuum tube amplifiers for guitarists. Some of the time I'm an exec at a consulting firm.

If you want to get hold of me, reply to one of my comments and we'll figure out how to connect.

submissionscomments
scrumper··on Music has scales / raagas. What about storytelling in movies and prestige shows?
Very interesting premise in the title. Something like the seven basic plots of Western storytelling, but built from an Indian perspective?

Anyway the site is too clever for its own good and crashes out with a "We hit an error" modal overlay on Safari on Mac, so I'll never know.

scrumper··on Keywords
Wordle-ish, but each row is a new word one letter longer than the prior which is a clue for the next.
scrumper··on Flipdiscs
From the exploding pixels and then you're fine. You needed an H as well anyway.
scrumper··on My phone replaced a brass plug
Isn't .22 a bit small for deer? I don't know anything though, so this isn't an informed objection just a question. Or were you just learning fundamentals of shooting before trying a bigger caliber?
scrumper··on NASA Force
Two things:

- I like the rolling Moon animation very much.

- This seems like a clever way of getting talent involved during a budget squeeze, presumably with the hope that some of those they attract will still be around after this congress and the agency can stabilize once again. I guess it's also a neat kind of try-before-you-buy for both sides. NASA is prestigious and one of the very few places one could do purely science-focused aerospace engineering, but it's still a government job under all the gold leaf and atomic robots.

EDIT: Good Lord, I get the cynicism but at least someone at NASA HR is trying new things to keep the lights on.

scrumper··on OpenAI backs Illinois bill that would limit when AI labs can be held liable
I forget, wasn't OpenAI the company that was formed as a nonprofit to limit the risks of LLMs? Founded by a bunch of visionaries scared of what they had wrought and anxious to lead so they could make sure it was only used responsibly?
scrumper··on Show HN: Moon simulator game, ray-casting
Hey I really liked this. Reminded me a tiny bit of Lander on the Archimedes, Hardwar (underrated!), Wing Commander-y visuals.

The extensions suggest themselves - some progression (financial) beyond merely guild hierarchy; some adversarial element (could be economical like bidding for routes.)

Only bit I struggled with was the car-like handling when you turn left and right; I would expect you to orient using yaw axis and then have to use thrust to change your velocity vector. But it certainly is simpler the way you have it.

scrumper··on French e, è, é, ê, ë – what's the difference?
My first French teacher drew a picture of a smiling triangular-topped tombstone with long eyelashes on the blackboard, the word "acute" written up the left (ascending) side of the top and "grave" down the right hand side. A cute grave. Easy to remember. And fairly useless, since it doesn't help a whit with how to pronounce those accents.
scrumper··on Running Tesla Model 3's computer on my desk using parts from crashed cars
charm.li covers Fords and many other makes too up to 2013 ish. It is a pirate archive site holding workshop manuals for thousands of cars. Very useful. Very free. Long may it stay hidden.

More legitimately, alldata.com has repair data, workshop manuals for most marques up to today and will sell you either single vehicle (called "DIY") or a package aimed at independent mechanics where you can access anything. Same manuals either way, but you pay per vehicle with DIY (and have to contact support to switch.)

I use alldata for my GM truck, it is fantastic.

scrumper··on The Last Testaments of Richard II and Henry IV
Do you mean the Hollow Crown series? It's very very good stuff, prestige production of the Henriad. Some excellent performances by a fine cast. Opening of course with Richard II, Ben Whishaw playing the king.
scrumper··on Bubble Sorted Amen Break
It's sorting by index of the slice. Pressing "shuffle" jumbles the slices up. So it puts the slices of the break back in the correct order. You never hear the result.

Set it to 8 slices and it becomes easy to see what it's doing: look at the waveform and the now-playing highlight jumping around.

scrumper··on The Enterprise Context Layer
> that rule could still look valid in the ECL long after the original reasons for it stopped applying.

Ha, then it'd be doing a great job of internalizing institutional knowledge! Wait a few years and then put another one on top. I'm not sure how these things incorporate new knowledge over time, or handle re-orgs and strategy shifts, or adapt as new verticals are added. Do you need ever increasing numbers of agents to keep things in line?

As much as I'd love to have a perfect example of one of these running - it really would be very beneficial - I do have a vague feeling that these ECL concepts (and similar Enterprise-wide knowledge management AI panaceas) are the 21st century equivalents of trying to build comprehensive expert systems in Prolog.

This is cool though. Agents make it seem more plausible in a way that pure RAG systems don't. I am sure there is mileage in more focused cases (like at the author's startup, or departmentally.)

scrumper··on Show HN: Hacker Smacker – Spot great (and terrible) HN commenters at a glance
I wonder what the second order effects of this on the HN karma system will be. It'll create a graph of karmic supernodes perhaps. Say I green-blob someone with a big reputation here, say jacquesm; no doubt lots of other people will do the same. The friends-of-friends icon is going to appear widely but it'll all be a single edge away from Jacques' node. Is that much of a signal? I dunno. That's 30 seconds of thought about it. It's a fun idea though so I'll try it.

Version two: hide foes? Come to think of it, maybe the 'foe' aspect is the fun part...

EDIT: it's like I summoned him.

scrumper··on Warm Oceans Turned a 3-Inch Forecast into a Record NYC Blizzard
A bit of scorn coming your way in the replies but it's not necessarily intuitive if you haven't thought about it. Some analogies that might help:

- If I play roulette in a casino today, I might win big, break even, lose a little or lose a lot. If I play roulette in a casino every day for a decade, I can be nearly certain I will lose a lot.

- Consider an ant walking on a rough stone road built up the side of a hill. If you look at the ant at any particular second, its body might be pointing up (head higher than tail) or down (vice versa) or level, depending on what particular angle of rock it's on at that time. But measured over minutes its likely to be at a greater altitude above sea level than where it started. Measured over the hours it takes to get from the bottom to the top, it's definitely higher.

- A random day of the year (pick from 1-365) in England might be sunny or rainy, but the chances of it being sunnier are higher if the day picked is in the summer.

The point is that there's a tremendous amount of noise in short-term measurements which tend to smooth out over longer term where trends are more clearly revealed. That's the counterpoint to your argument and the reason why climate prediction is not the same as weather forecasting. Going back to the casino analogy, climate prediction is looking at your bank balance over decades; weather forecasting is deciding how to bet on a particular poker hand.

(And finally, we actually kind of do mostly know what's going to happen tomorrow, but not a week out; that's not the point you're making though.)

scrumper··on Evidence of the bouba-kiki effect in naïve baby chicks
> Also, the thing about high frequencies and sharp edges lead to a contradiction: babies are more round than adults and produce higher pitched sounds, this is almost universal across all species.

It's more in terms of harmonic content than the pitch fundamental. There are more harmonics from a thing with sharp transitions than there are in a thing with rounded transitions regardless of the fundamental pitch. Compare harmonic content of a pure sine wave (it's just the fundamental) with that of a square wave, which has an infinite series of higher harmonics.

Babies are also smaller, which means higher fundamental pitch.

> "kiki" is not just higher pitched, it is also "shaped" differently if you look at the sound envelope, with, as expected, sharper transitions.

Exactly!

EDIT I think this is interesting: it also applies to images as well, not just sound. You can "low pass filter" a photograph and it'll reduce some of the detail, smoothing out transitions (typically used for noise reduction). Detail is high frequency information (or high frequency noise depending on whether you want it or not.)

scrumper··on Rathbun's Operator
Good news! You’re both wrong! It’s “tough row to hoe.” Row as in row of corn, or seeds or whatever. Hoe as in the earth tilling tool. Tough because it’s full of rocks or frozen or goes past a rattlesnake nest or in some other way is agriculturally challenging.

Here is a multiply-sourced discussion https://english.stackexchange.com/questions/62461/is-it-a-to...

scrumper··on Show HN: Geo Racers – Race from London to Tokyo on a single bus pass
Fun, if buggy. There's a real-world version of it as a British reality TV show, it's entertaining.

I crapped out in my first play: I boarded a bus in London taking me to Dover, it went to Folkestone then travelled at warp speed to Doncaster which is more or less the opposite end of the country.

The lack of information about routes from your destination adds a nice bit of randomness and luck. Quite liked that part.

EDIT: I'll definitely play again, sorry if my tone sounded negative because it really wasn't supposed to.

scrumper··on People who know the formula for WD-40
3-in-1 is pretty unpleasant, I agree. I use it as a cutting fluid for drilling steel mostly and it's not any nicer when hot. Perhaps I will try some of your gun oil.

Best smelling shop liquid I've yet encountered is Marvel Mystery Oil. It's amazing.

scrumper··on Wind Chime Length Calculator (2022)
The linked site acknowledges Lee Hite actually. I suspect it's not a crowded field :)

The suspension point calc is particularly neat, I suppose putting it at a null node in the tube vibration so it doesn't damp it.

scrumper··on Douglas Adams on the English–American cultural divide over "heroes"
Been years too but yes, he gets to live back on earth and shacks up with his girlfriend if I remember correctly. I remember even as a kid thinking it was tonally a bit weird but I need to re-read the entire series with adult eyes.

I was going to reply to jacquesm's comment above about Forrest - they both embody some stoic qualities - but you touched on that anyway.

> Bilbo, yossarian, Rincewind

Yossarian! Outstanding. Bit of a cynic more than a stoic perhaps? You're right about Bilbo. Frodo I think not so much. And Samwise of course is pure American.

scrumper··on Douglas Adams on the English–American cultural divide over "heroes"
I think so. He's more storm-tossed survivor than Moses parting the waves, but he makes the best of the endless shit he's dumped into and preserves his sense of self throughout. I think he responds heroically, far more than he fixes anything external. For example he finds himself marooned on a strange planet and sets up a Perfectly Normal Beast sandwich shop, living very comfortably for a while.

For what is he fighting against? Nothing really, he's just adrift in the universe. There's no antagonist beyond existence itself and his own circumstances. He faces off against both quite effectively.

scrumper··on Douglas Adams on the English–American cultural divide over "heroes"
Yep. I haven't found any metalworking channel that isn't. Woodworking channels can be a bit more... confident, "I know best so follow my hack if you want to keep your fingers," but many of the established, higher production channels like Lincoln St, Blacktail etc. are all just as deprecatory as the metal stuff.
scrumper··on Douglas Adams on the English–American cultural divide over "heroes"
That's a very interesting observation. You see it a lot in "tradesy" videos on YouTube, machinists* and welders and woodworkers and the like. The humor and self deprecation - far more apparent than in most other genres of American media - is really quite close to feeling British. As a transplanted Brit, it's pretty comforting stuff to watch.

*This Old Tony's channel is a particularly good illustration of this point, among many.

scrumper··on There's a ridiculous amount of tech in a disposable vape
Well it was six years ago, I work from home now and take the train once a quarter, and they've augmented the machines with app parking now so I have nothing to complain about anymore :)
scrumper··on There's a ridiculous amount of tech in a disposable vape
I was late for a train at my local station and the parking machine was taking ages to respond to keypresses. I could see the training pulling up to the platform and I was still stuck entering the second digit of seven. In my shameful frustration I hit the machine fairly hard. While the button presses might take a while to register, the anti-tamper alarm has really low latency and is also quite loud.
scrumper··on Shipmap.org
I thought that too but they're surprisingly fast. I tracked a dot across the Atlantic (US East Coast to UK) and it took around 4-5 days, which is about right.

There's a very nice effect where if you zoom in, time slows.

scrumper··on enclose.horse
This is nice, I enjoyed it. Was a couple points off the optimal score for day 8 but when I clicked "Show optimal" I couldn't then go back to see mine to compare. Either way, stretched the brain a bit.

Only nit: fix the walls. They take up one and a half spaces so are confusing, and they're sci-fi steel with flashing red lights. Turn them into one-square-only fences. You use fences to enclose horses, not raptor walls from Jurassic Park.

scrumper··on Daft Punk Easter Egg in the BPM Tempo of Harder, Better, Faster, Stronger?
Kinda ish. Healthy resting heartbeat is around 60bpm and comfortable exertion heart rate - like doing an indefinitely sustainable run, the kind of thing we evolved to do to run down prey - around double that. The most broadly popular styles of dance music tend to float around 120bpm. It just feels natural to humans. At a guess, some combination of biomechanics (muscle twitch speed, pendulum effect of limb sizes against their articulating joints), heart beat, what most people can manage in terms of sustained exercise (as mentioned above), and attention span linked to multiples of musical phrases.

Specifically about keeping tempo, human drummers don't really. They will move around a central tempo, slowing in verses and increasing tempo in choruses and as the song progresses. If you're hearing a fixed tempo in a song, it's because it was recorded with a click track in the drummer's ear. Super common these days because popular tastes for recorded music currently skew towards perfection.

scrumper··on You can now buy used Ford vehicles on Amazon
It stems from franchise law which exists to give franchisees a modicum of protection from adverse practices by the much stronger party in the relationship.
scrumper··on Enjoy CarPlay While You Still Can
One of my former clients was a top 10 automaker. I had a digital consultancy so was very close to their ICE division. They were obsessed with owning the screen, mostly so they could charge subscriptions for it. We were doing all sorts of wild pilots, like AI-powered language tutors for people stuck in their commutes. I was happy to take their money, but of course if any sane person wanted an AI powered language tutor they'd just install an app on their phone and use the bluetooth to talk to it.

OEM margins aren't great and their C suites are desperate to unlock any new revenue streams they can. This is inevitable, and it's a shame the nice thing we had is going away. The baller move would be for Apple to go buy an OEM and roll out a vehicle, but that seems to have stalled. It doesn't have to be self driving!

← PreviousPage 3 of 34Next →