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defo_nonconvex

88 karma · joined June 26, 2014

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defo_nonconvex··on Stop replacing London’s phone boxes with corporate surveillance
Possible on Android and without root?
defo_nonconvex··on How to Study Mathematics (2017)
Who's the best?
defo_nonconvex··on A Tiny Hedge Fund Made 8,600% on a Vix Bet
I tried to get through this, but after one or two chapters it seemed really dry, and somewhat outdated for current markets. I've read dry material on financial markets before, but jeez. Did you actually learn much from it? If anyone wants to post a tl;dr summary, it would be appreciated.
defo_nonconvex··on Ikea founder Ingvar Kamprad has died
BASF, Thyssen (without the Krupp at that time...) plenty of blame to go around...
defo_nonconvex··on Mycroft Mark II: The Open Voice Assistant
So they're finally switching from Google STT to Mozilla Deepspeech, but that project includes no pre-learned models IIRC. So where is MyCroft getting its data from? Or is Mozilla releasing models in 2018?
defo_nonconvex··on Once seniors are too old to drive, our transportation system fails them
There are quite a few countries with much lower rates of religious affiliation than the US, and decent societal values. NZ, Aus, Nordics, Swiss, Germany etc. And even if they have non-trivial rates of religious belief, its not the kind of fundamentalist and extractive religion that grips the US. If anything, the decoupling of religion from official institutions in the US has given it free reign to accumulate ever more soft power and wealth.

Those countries usually have "stronger" Governments too, with stronger social safety nets, and healthcare systems that don't try to shaft you for $40k when giving birth.

More to the point, someone should visualise the relationship between rates of religiosity and quality of public transportation, across a range of geographic areas. I can imagine the general trend, though there may be some outliers like Poland and Italy.

Content aside, this text sounds like a street-preacher in Battlestar Galactica or The Expanse.

defo_nonconvex··on Whole Foods employees reveal why stores are facing a crisis of food shortages
If you were searching for ice-cream with real vanilla, then its possibly understandable. A cyclone clobbered the Madagascan crop in 2017, multiplying the price. Some gelaterias in London didn't even run vanilla this winter as a result.
defo_nonconvex··on An Amazon Order Might Lock You Out of Trusted Traveler Programs
I went into a Decathlon for the first time the other day, after long assuming Amazon would always be cheaper for outdoor+active wear...so wrong. Totally surprised at a high street store having a huge range of better quality merchandise, at lower prices, and no need to shop around amongst all the clones with very similar appearance, but varying quality. My faith in the bricks-and-mortar stores has been partially restored.

And for safety-critical purchases...no way am I risking buying something like angle grinder discs or fire extinguishers off Amazon. Fake headphones mean a bit of distortion, fake discs might mean a lost eye.

So now its just low-cost, low-risk purchases where I don't care too much if the item is junk.

On that note, where do people buy electronic hardware if not Amazon/PC World? E.g. for SD cards - Amazon carries the risk of counterfeits, and PC World carries the high street premium.

defo_nonconvex··on A deadly gut infection may come down to a sugar in ice cream
Thank Orrin Hatch.
defo_nonconvex··on As of today, no US passenger airlines operate the Boeing 747
Are twins inherently more efficient per pax than quads? Wouldn't a quad plane just run at a lower thrust level per engine? Given that fan sizes and core temperatures are rammed up against difficult limits, I would've thought that quads could give a better bypass ratio (and hence efficiency) by reducing the core engine size and thrust requirement.

Or do you mean operational efficiency...fewer parts to maintain, engineers, simpler plumbing etc? Probably less disturbance on the wing flow with 2 engines as well.

defo_nonconvex··on Caste violence erupts in India over 200-year-old faultline
Mmm I don't know, I've met some educated and/or wealthy 1st and 2nd gen Indian immigrants who get pretty hoity-toity about being a brahmin.
defo_nonconvex··on You’re Descended from Royalty and So Is Everybody Else
Sounds like something LeCun would say..."I actually invented time as a special case of a deep network back in 19xx...."
defo_nonconvex··on Jakarta Is Sinking So Fast, It Could End Up Underwater
Tiny country by land mass maybe, but you know the Dutch East India Company's peak market cap was (inflation-adjusted) 8x10^12 USD, right? If you don't understand the economic impact of early resource abundance, on the ability to construct education systems, universities, professional organizations, infrastructure, and industry, and the 'pool of available talent', then pick up a strategy game.

Otherwise just Rand-ian codswallop.

defo_nonconvex··on Coinbase says buying and selling temporarily disabled amid price rout
Given a market in a steady state, as long as your (return+premium) rate is higher than your expected payout, you're still ok. So your premium-expected_payout could be negative and you could hopefully still keep the lights on, no?
defo_nonconvex··on Coinbase says buying and selling temporarily disabled amid price rout
Err, a big chunk of their bottom-line comes from reinvesting the float, or just re-insuring and taking the spread.
defo_nonconvex··on Goldman Sachs Is Setting Up a Cryptocurrency Trading Desk
Isn't Coinbase a dark pool? Off-chain transactions seem like order internalization to me...
defo_nonconvex··on How Duterte Turned Facebook into a Weapon, with Help from Facebook
False equivalence. There's a legitimate argument that allowing one media group to stealthily control local media markets creates potential for mass misinformation. Or that allowing tobacco companies to litigate against entire nations health initiatives is a bad idea. Both are large entities wanting to steer society into alignment with their profit motive.

It's not nearly similar in lack of to calling women prostitutes and sluts for advocating that health insurance should cover female contraception. Or calling 13 years old girls, "dogs".

It's not to do with left and right. It's to do with a basic sense of civility.

defo_nonconvex··on How Duterte Turned Facebook into a Weapon, with Help from Facebook
How does Oliver encourage helplessness? There's often a direct call-to-action at the end of particularly pointed segments, from contacting local representatives to the more frivolous hashtags for e.g. Phillip Morris. While I have issues with his style, the targets are usually well chosen.

With regards to your analogy...you would not have much luck encouraging a 2nd grader to improve their reading comprehension beyond 2nd grade by telling them to stick to a 2nd grade level of reading.

defo_nonconvex··on An Alexa Holdout Wants to Know Who’s Listening
The battery life on the Dash buttons seems subpar. Having torn one down last weekend, <100 presses has it down to 50pc.

No easy way to replace power supply with something USB rechargeable either.

defo_nonconvex··on An Alexa Holdout Wants to Know Who’s Listening
Needs to phone MyCroft homebase for setup (didn't look hard enough to figure a way around that), and uses Google's STT.

Privacy...not attained.

I shouldn't have to ask Google to open a local file for me.

defo_nonconvex··on An Alexa Holdout Wants to Know Who’s Listening
Tried it. You need an account with MyCroft to set up your device, and it uses Googles STT API. You can use CMU Sphinx to backend the STT...but it sucks.

So nevermind privacy, the stupid thing needs connectivity all the time. Might as well go with DragonDictate.

defo_nonconvex··on Ask HN: Your favourite outstandingly creative/informative YouTube channels?
PBS Infinite Series (nice pure + applied popmath, great visualizations)

PBS Spacetime (cosmology, great visualizations)

Practical Engineering (spotlighting unappreciated field of civil engineering)

Real Engineering (composites PhD from Ireland covering aero+mech engineering, nice visualizations)

Wendover Productions (lots on intersection of transport+econ)

Steve Mould (popsci demonstrations)

Colin Furze (insane garage mechanical hacker...wrist flamethrowers, pulsejet bicycles, 600cc engine in an auto-rickshaw...)

defo_nonconvex··on Firefox Will Warn Users When Visiting Sites That Suffered a Data Breach
What could they sue for? Defamation?
defo_nonconvex··on The Rise of Workplace Surveillance
"If a paralegal is writing a document and every few seconds is switching to Hipchat, Outlook and Word then there’s an issue that can be resolved by addressing it with the employee"

Wait, what? Are they trying to do ADHD diagnosis from window activity?

defo_nonconvex··on Inside Google Brain
Kurzweil seems more like a master of generating linkbait-like titles.

"The singularity is near: When humans transcend biology" "The age of spiritual machines: When computers exceed human intelligence"

I'd argue that Stephen Boyd is more of a master of AI than Kurzweil.

defo_nonconvex··on Venture Capitalist Tim Draper Wins Bitcoin Auction
Isn't M-pesa backed using the country's currency? What logic of what you're saying sounds like it could imply that "Paypal is it's own virtual currency"...