HNHacker News
TopNewBestAskShowJobs

wdewind

5,454 karma · joined August 11, 2009

Will DeWind

Engineering Manager at Gemini, formerly at Sana, Justworks, Etsy

will . dewind at gmail.com

submissionscomments
wdewind··on Introducing the Shift Card: Use Bitcoin where Visa is accepted
I think I probably agree with your general point that the mandated KYC practices are not enough to protect you and your stakeholders in and of themselves. That being said, I think you'd be surprised how much fraud fails to get through basic KYC checks. (I did not downvote you fwiw).
wdewind··on Introducing the Shift Card: Use Bitcoin where Visa is accepted
I think you're misreading my use of the word absolutely. I was responding to the idea that KYC compliance is a joke. It is absolutely useful, that does not mean it prevents 100% of fraud absolutely.
wdewind··on Introducing the Shift Card: Use Bitcoin where Visa is accepted
Obviously security will always come at a convenience cost, and if by "my bottom line" you mean "not losing money to fraud" then yes, duh.
wdewind··on Introducing the Shift Card: Use Bitcoin where Visa is accepted
I think you're misreading my use of the word absolutely. I was responding to the idea that KYC compliance is a joke. It is absolutely useful, that does not mean it prevents 100% of fraud absolutely.

> With millions of SSN and personal information being available after numerous breaches from health care, etc how exactly are you supposed to vett someone's identity over the Internet?

I can't really get into our entire KYC and fraud prevention process, but I'll just say there are many more ways to vet someone's identity then simply asking for their SSN.

wdewind··on Introducing the Shift Card: Use Bitcoin where Visa is accepted
I don't deal with international finance but I do deal with payments within the US and I have to say I really disagree with you on KYC. Our KYC process absolutely prevents fraud from happening, and because we are liable for any transactions we process I can't imagine operating without it.
wdewind··on The mid-Victorian diet was a mini golden age of nutrition
It's not only meal prep (which I think you are understating the cost of), it's also having access to a kitchen and cooking supplies (knives, pans, bowls etc.) that allow you to easily cook, which is not cheap.
wdewind··on The mid-Victorian diet was a mini golden age of nutrition
By volume or mass yes, by calorie absolutely not.

Edit: I totally misunderstood the comment I was replying to and agree with it.

wdewind··on What's Behind the Exodus from Rent the Runway?
Actually she's not that far off. It's a stupid way to phrase it, but the global apparel and global entertainment market sizes (as well as their corresponding USA measurements) are pretty similar (~500B/2T).

http://www.statista.com/statistics/279735/global-apparel-mar...

http://www.statista.com/statistics/237749/value-of-the-globa...

wdewind··on Mark Zuckerberg's plan for the future of Facebook
Yeah I don't even disagree with that haha (I mean youtube is another great example), but the analysis I provided is still probably the reason FB gets a hardtime on HN while Google doesn't.
wdewind··on Mark Zuckerberg's plan for the future of Facebook
Intent. Google advertises where you are already "in the market" for something (be it a physical product or a site). Facebook advertises where you hang out with your friends, which is less effective and feels ickier. Which doesn't mean FB ads don't work, but it does mean they work very differently than google ads and have very different connotations.
wdewind··on Zenefits launches free payroll software for small businesses
One example would be if your company is offering benefits not managed through Zenefits, such as an outside 401k plan or something. In those cases you'd want to make custom deductions for the 401k plan. (I don't work for Zenefits but I do work in the industry).
wdewind··on The Western diet has nearly killed our ancestral microbiome
> that rice is much more healthy than the vitamin-fortified substance made out of bleached, white flour that we call bread nowadays.

On what basis have you arrived to those conclusions?

wdewind··on Bank of America Cut Off Finance Sites from Its Data
> but it's not functionally different than having an API and a system for registering API keys

No, it's completely different. The entire point of keys is avoid having to store credentials, it has nothing to do with permissioning. In the case of Mint etc., they have to store credentials because there is no token/key system being provided from the banks (ie: oAuth). In the case of something like oAuth creds are never sent to the 3rd party.

And the ironic part of this is if they banks simply provided something like oAuth then they would have MUCH more control over who they worked with and have an easier time managing 3rd party data.

wdewind··on A lot of what we think we know about WWII is wrong
https://en.wikipedia.org/wiki/PPSh-41 not AK-47
wdewind··on Facebook Blocks Internet Pioneer “R.U. Sirius”
It is ironic to see the quote from RU Sirius about what a victory the internet is for the counter culture:

> The rise of the Net and the Web represents a victory for the counterculture and the subculture. The next generation, raised on the Net as their primary medium, won't even know what consensus reality is.

followed by this from the comments:

> This is what happens when you let little children manage grownup things.

basically begging for a more traditional power structure, and being extremely upset when the next generation, raised on the Net as their primary medium, manage it differently than how he'd expect.

I don't think RU Sirius is right about the internet being a win for the counter culture (I do hope he is right, though). I can't find a year for that, but I'll bet it was said before all the Snowden stuff.

wdewind··on Cutting Back Sugar Improves Obese Children's Health in Just 10 Days
I agree with much of what you're saying, even though I don't think the science strongly supports it (yet). A lot of cool stuff going on right now.

I want to be clear though: there is certainly evidence that very high blood sugar causes significant damage, sometimes permanent, I'm not contesting that. How high "very high" is varies, and as far as I know doesn't really happen in people who aren't diabetic. All I'm saying is I don't think blood sugar spikes are bad for non-diabetics, but they certainly are for diabetics.

wdewind··on Cutting Back Sugar Improves Obese Children's Health in Just 10 Days
Thanks for the links.

I don't really think these studies show that acute blood sugar level elevation is causing the damage you are talking about. The first one talks about how TII diabetics tend to have lower β-cell count and higher apoptosis frequency, but that doesn't mean they go through waves of apoptosis more frequently (ie: during blood sugar spikes), it means that they have a lower life span. The study doesn't establish causality, so it's unclear whether diabetics have lower β-cell count because they are diabetic, or whether lower β-cell causes diabetes. It is a great study though, pretty well designed and building on kind of amazing resources from the Mayo Clinic.

The second study is interesting but extremely limited due to the fact that it was does in vitro. The problem is that it's talking about kidney fibrosis, or scarring of the kidney due to inability to regenerate. But when you remove much of the kidney and the surrounding body and then attack the kidney with glucose of course there is damage. That doesn't mean that in vivo the body can't deal with it. Kidneys do have a hard time regenerating, so it's an interesting foundational study, but I'd hardly call it "a lot of accumulating evidence."

wdewind··on Cutting Back Sugar Improves Obese Children's Health in Just 10 Days
> Even if the spike is controlled down within 1-2 hours, there is a lot of accumulating evidence that it isn't the duration or absolute value of high blood sugars, but the spikes (the occurrence of any delta in the first place) themselves that cause cellular damage.

Can you link to anything about that?

wdewind··on Cutting Back Sugar Improves Obese Children's Health in Just 10 Days
No, potatoes have some simple carbs but they are predominantly starches, which are complex carbs.
wdewind··on Cutting Back Sugar Improves Obese Children's Health in Just 10 Days
> Anecdotally-empirically, a lot of Type 2's have found carbs, fiber or no fiber, are just bad news.

Sure, I wasn't talking about diabetic people.

> In a few years, we will hopefully start accumulating a flood of highly-granular, anonymized biometric sampling data, ideally tagged with true/false flags of known and suspected genetic markers (but not enough DNA data to individually dox someone). Has someone solved the problem of publishing biometrics with tagged DNA data, and be able to update the DNA tags as our understanding of genetic markers improves over time, without risking doxxing an individual from the genetic marker tags?

I also hope that this is the future. Unfortunately we're probably not going to do much better than HIPAA when this technology is widely available and being used. I'm not sure how to prevent the GATTACA side effects, but it feels like the health advances might be worth it.

wdewind··on Cutting Back Sugar Improves Obese Children's Health in Just 10 Days
Yes but I'm arguing that doesn't make a huge difference. Certainly there is a small one, but all things being equal the accompanying fiber is a lot more important.
wdewind··on Cutting Back Sugar Improves Obese Children's Health in Just 10 Days
I guess we are getting pretty semantic. I meant simple sugars, of which glucose and fructose are two, not sucrose, which is "table sugar," and is partially fructose and glucose.

You're right though, it probably would've been more helpful for me to say carbohydrates in general.

wdewind··on Cutting Back Sugar Improves Obese Children's Health in Just 10 Days
Right...specifically fructose, not sugar in general...
wdewind··on Cutting Back Sugar Improves Obese Children's Health in Just 10 Days
I'm not really sure what you are saying, sorry.
wdewind··on Cutting Back Sugar Improves Obese Children's Health in Just 10 Days
> This study should be an eye opener for that 40% who largely believe "all carbs are created equal".

All carbs pretty much are equal, it tends to be the amount of fiber that comes with the carb that changes things. This study was about fructose, not sugar in general, and we've known for a long time that fructose behaves differently from other carbs due to the way it is metabolized in the liver.

wdewind··on The Fats You Don’t Need to Fear, and the Carbs That You Do
Sorry I took so long to get back to you. The stuff you are talking about is very complicated, and short of recommending you go read a bunch of textbooks front to back, I'd suggest just starting with some basic nutrition to get a foundation there, before getting into stuff like blood sugar + brain function.

This article will give you a good primer on nutrition with a focus on gaining weight:

http://www.barbellmedicine.com/potpourri/584/

If you have any other specific question I'd be happy to chat through them but HN is probably not the best venue. My contact info is in my profile, I love talking about this stuff so feel free to reach out.

wdewind··on The Fats You Don’t Need to Fear, and the Carbs That You Do
It really depends on your goals and what you are looking to learn. It sounds like maybe you are trying to put on weight, in which case I can't recommend whole milk enough :) But if you want to be more specific about what you'd like to learn I can recommend some resources.
wdewind··on The Fats You Don’t Need to Fear, and the Carbs That You Do
My problem with things being "good" or "bad" is that it's divorced of context. Carbs are not good or bad, but they are certainly bad in certain contexts and good in certain contexts. Different diets can be effective for different things. Some people are actually trying to gain weight, some people only need to change body composition, some people tolerate high fat well, some people don't etc.

So I agree with you, and my point is not to say that carbs are good for you or bad for you, but that anyone saying a major macronutrient group is good or bad without context has a large burden of proof.

wdewind··on The Fats You Don’t Need to Fear, and the Carbs That You Do
It shouldn't really make any difference. The point is fat is an energy store and your body is pretty good at storing excess calories and then using them again when needed.

Things do get a little more interesting, and the science becomes a little weaker, when you start thinking about nutritional timing in the context of body composition instead of overall weight. For instance, muscle protein synthesis remains pretty constant in someone with protein at most meals. But you are able to "spike" it about once every 3 hours (the mechanism seems to have a threshold around 8g of leucine, after which it can't be spiked again for another 3 hours).

So in theory the optimal way to eat the same number of calories, all else being equal, is evenly divided into a meal every three hours you are awake.

But it's a micro-optimization and doesn't make a huge difference, and again the science isn't super well reproduced there. People certainly succeed at elite levels with many different meal timings.

wdewind··on The Fats You Don’t Need to Fear, and the Carbs That You Do
Sure, but since you've packed such a large percentage of your calories into this one meal, what happens to that fat at the later time when you would otherwise be eating again?
← PreviousPage 14 of 34Next →