HNHacker News
TopNewBestAskShowJobs

untangle

613 karma · joined May 23, 2011

[ my public key: https://keybase.io/bravozulu; my proof: https://keybase.io/bravozulu/sigs/exid1pKokiokFVNfE40Vv9j7UB3VFxQYEHPl0i93qDI ]
submissionscomments
untangle··on We're Baking ‘Have I Been Pwned’ into Firefox and 1Password
Well, with respect, this is an undeniable win for Troy. I think that the parent comment was questioning how big a win it is for The Rest of Us.
untangle··on Amazon Is Complicit in Online Sales of Counterfeit Goods: Report
> makes it really hard to tell if you're buying something "shipped and sold by Amazon"

Not really, the filters on the left are your friend:

1. Check ELIGIBLE FOR PRIME 2. Select Seller=Amazon 3. If in doubt about the rating, run the URL through Fakespot [1].

This is not foolproof but I have found it effective. If I need a broader search I just start relaxing constraints.

[1] https://www.fakespot.com/

untangle··on On the Sad State of Macintosh Hardware
> The iPad Pro is the future of Apple.

Maybe it's more accurate to say that iOS is the (present and) future of Apple. All arrows seem to point in this direction. It's a mobile, run-anywhere world that Apple sees as the future.

In that vision, MacOS machines are a cash cow business. And the corporate playbook for those is min-investment, max harvesting.

untangle··on Why emergency braking systems sometimes hit parked cars and lane dividers
Until I read this article, I thought that the all-optical adaptive cruise control system of my BMW i3 was clearly inferior to modern radar-based gear. I now see at least one use case -- stationary objects -- where the i3 setup has an edge. (But the i3 setup suffers mightily in low-contrast and low-sun-angle scenarios.)
untangle··on APL deserves its renaissance too
Remember the Palm Pilot? Drawing the ASCII-ish symbols in the little box? While I did memorize the strokes, I never found the process efficient. I don't think that drawing APL runes would be any better -- certainly not better than the key-combos of Dyalog's bespoke APL editor (free for personal use, BTW).
untangle··on APL deserves its renaissance too
Neat little tribute article.

APL will not be reborn. If that was going to happen, this century's embrace of analytics and linear-algebra-rich machine learning would have propelled the upswell. It didn't and it won't.

Why? It's not the symbols. Not the keyboard. Nor the learning curve. Nor the lack of standardization, libraries, or GPU support. These are collateral damage, not primary drivers.

APL will not flourish because it is effectively a DSL with archaic I/O capability. It is a nearly-pure functional programming language. It's primary domain is mathematics. Native GUIs, networking, the web -- all uncompetitive add-ons.

In this sense, APL and Haskell share some DNA.

For dynamic systems modeling for my thesis, I reached for APL and Matlab. I still code Dyalog APL for recreation. Love it. But I wouldn't build a web app with it and a wouldn't run my company on it.

untangle··on Birchbox reached a deal, but it will leave some investors with nothing
I recently sold a company that was in an ostensibly similar position. The information on this deal is incomplete, but here are my thoughts.

Given how lean they were running, they probably broke the covenants on their loan(s). This would make them "technically insolvent" -- a very uncomfortable position for their (VC) Board members. Further, it's quite possible that the lender required a substantial number of Preferred shares as collateral.

So the company was probably in a bind, even if cash-flow positive.

Bankruptcy was probably not an option either. It kills any residual value in the company, as modest as that may be. And it requires Board and/or lender approval. A takeover by the lender would be more likely.

Another important dynamic to consider is that debt stands first-in-line for any proceeds. If necessary, all equity would become zero-valued if that's what's required to pay off the debt.

These are the reasons that debt is shunned in startups: if things go south, debt will make it 10X as bad. IMO, debt should only be used in healthy startups with predictable cash flows. The ability to make the payments isn't enough. The covenants are the first thing that bites.

With this as background, I would guess that management, debt, and the new equity got together and reached an accord that allows the company to try to get to a better place. Hopefully much better. The deal probably contemplates a strategic buyout within the next few years.

Disclaimers: I am a CEO -- not a lawyer, banker, or accountant. These are my opinions and analysis and I apologize to the parties involved if I got something wrong.

untangle··on The economics of artificial intelligence
Management consulting nonsense.

Here's the author's pitch: The value of AI is in "cheaper prediction." So economic value capture occurs by looking for prediction problems in your business and unleashing AI on those. The author further prescribes that one may have to "recast" certain problems (e.g., self-driving cars) as prediction problems to make it all work.

But the stunner for me was the assertion that the value of the semiconductor was "cheaper arithmetic."

I find these over-generalizations neither accurate nor helpful.

untangle··on The life cycle of HIV in 3D [video]
Agreed. These Harryhausen-like creatures are every bit as menacing as the Kraken. I naively failed to realize the deadly complexity (genius) of the HIV virus. Well done piece.
untangle··on A History of APL in 50 Functions
>how does one determine what the characters mean?

Download (free) Dyalog APL. Mouse-over any character in the editor and a mini-man page pops up.

Or use this cheat sheet:

http://docs.dyalog.com/16.0/ReferenceCard.pdf

untangle··on A History of APL in 50 Functions
For those wishing to learn this mysterious language, Dyalog has an excellent online tutorial at:

https://tutorial.dyalog.com/

Using this tool, I was "thinking APL" (at a novice level) in a couple of days.

Dyalog also has a free-for-personal-use 64-bit version.

untangle··on A History of APL in 50 Functions
> APL mode in emacs, typing these things in is pretty easy...iota is just `.i`, rho is `.r`, etc.

...and iota is just `i and rho is `r in the Dyalog editor. So non-emacs folks can play too.

untangle··on Stack Overflow Isn’t Very Welcoming – It’s Time for That to Change
> Do toxic communities produce better content?

I don't think that's the right way to think about it.

Rather, I would say that tightly-moderated communities of experts tend to produce better reference material ("wikis"). But this type of structure is "toxic" to discussions ("forums") and novices.

The SO founders and key contributors built a wiki. The site's incentive structure pointed in this direction so everyone was complicit in this outcome.

Now, site management seems to be saying that they want a "help-everyone" forum. They are -- like all big orgs with something to lose -- soliciting ideas, forming interdisciplinary committees, and giving "<3"-warming (yuk) speeches.

Given how ingrained the current culture is, I believe that meaningful change would entail significant risk.

untangle··on Stack Overflow Isn’t Very Welcoming – It’s Time for That to Change
> No one seems to want to change. No one seems to want to even engage with criticism about the culture

No one wants the rules to change in a game that they perceive that they are winning (or have won). Moreso if they worked hard to win.

untangle··on MacOS monitoring the open source way
The MacOS security products (donationware) are also excellent and overlap the functionality of these.

https://objective-see.com/products.html

untangle··on Papers from the Lost Culture of Array Languages (2011)
These constructs map fairly literally into APL.
untangle··on Papers from the Lost Culture of Array Languages (2011)
> Typing these characters is quite annoying though

This depends on the implementation. In Dyalog APL for example, the special characters (glyphs) are effected using fairly simple two-key sequences. Mnemonics are used to help learning. I found it fairly straightforward, surprisingly so.

untangle··on The Artificial Intelligentsia
Flawed? You bet. Overwrought? A bit.

But I found this Sunday AM read enjoyable, articulate, and largely on-point (overlooking a few minor scientific errors).

The core themes here are about the hubris of a rich CEO/founder, the zaniness of the current AI "market," and their resultant effect on a particular NYC startup.

This is a season of "Silicon Valley" (HBO) done east-coast, hedge fund, Ivy League style.

untangle··on The Artificial Intelligentsia
I think that you are over-generalizing. VCs use a number of disparate investment theses, including gut feel and betting-the-team in a "hot" (trendy?) space. Another dynamic is funding a team that previously produced a big win for the VC firm (as appears to be the case here).

And do you have a reference for the "fantastically high batting average" of US DoD research? Are you familiar with the SBIR program, for example?

I would judge that neither DoD/DARPA nor VCs have a great batting average. But both have some spectacular wins.

untangle··on The Artificial Intelligentsia
The Jim Shinns of the world are often LPs in VCs like Edison Partners. And/or they have led a major exit for the VC. Either of these situations gives them ample leverage for a "vanity" Series A/B. Even without the pool or country club.
untangle··on Theranos’ Letter to Shareholders Shows the Company Is on Its Deathbed
Probably because the Board can't find anyone better to take over this sinking, toxic ship. Sometimes it's just that simple.
untangle··on Wizard for Mac – new kind of statistics program
If you are willing to defer dismissing this tool out of hand as a p-value generator, you can get a better feel for how the author (Evan Miller) thinks about stats from his web site [1] and a presentation he gave [2]. I think you'll find that "Wizard" is not the product of whimsy.

[1] http://www.evanmiller.org/ [2] https://www.youtube.com/watch?v=TzJMFxj7GRI

untangle··on Apple’s 2019 Mac Pro will be shaped by workflows
> I'm pretty frustrated. Suggestions?

I suggest an upgraded 2009 Mac Pro.

The upgrades would include: flash to 5,1, 3.46 MHz Intel Hexcore proc, 32 GB RAM, SSD on a PMCIA card, and 5770 GPU. This should cost $1K USD or less, dual CPU (12 core) for a bit more. Mine Geekbenches at 3800 (S) and 17,800 (M).

I'm running one of these and it has been bulletproof and 100% hardware/software compatible.

untangle··on IBM Plex – A new typeface
Their website UX is far worse than IBM Plex. How can it be?
untangle··on Facebook’s disingenuous explanations call for more questions and even less trust
> Persphinctery statements...

I don't know what these are but they sound evil.

untangle··on Ask HN: Are there any purely keyword-based search engines with no NLP?
> something like "grep for the Web" would be ideal

A couple of these (e.g., Blekko) popped up 5-10 years ago. I don't think any made it far.

untangle··on Ask HN: Are there any purely keyword-based search engines with no NLP?
Try using G search "Tools/All results/Verbatim" option for your 'marco polo doctors' query. Maybe throw in a "-who" as well. These tricks help a little. Of course, one may also ask whether the page that you envision exists on the searchable web. It should, but maybe not.
untangle··on A letter from Drew and Arash
> Imagine how much better equipped we’d be to tackle humanity’s biggest challenges.This is the world we want to live in. We hope you’ll join us.

"Imagine all the people sharing all the world...I hope some day you'll join us. And the world will be as one."

- John Lennon

Drew, you picked worthy source material.

untangle··on A letter from Drew and Arash
> They're in the collaboration market, which is bigger than the storage market.

They're in the "file sync" market. They want to be in the collaboration market. Hence the John Lennon-esque post.

untangle··on Self-driving Uber car kills Arizona woman crossing street
Statistically, I don't think that miles driven on lonely freeways equal those in Manhatten. And perceptually, running down city pedestrians at 40 MPH will impact public thinking more than highway fatalities.
← PreviousPage 3 of 7Next →