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rustyconover

365 karma · joined May 5, 2014

https://www.linkedin.com/in/rusty-conover-ba5a6/
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rustyconover··on The Return of Africa’s Strongmen
A more insightful measure would be against GDP rather than government budget total.
rustyconover··on Crazy Pool Vortex [video]
Dolphin ring bubbles are also cool and involve vortices.

http://www.youtube.com/watch?v=wuVgXJ55G6Y

rustyconover··on Law school applications collapse: Get ready for schools to start closing
Floride doesn't prevent gum disease per se, but it does prevent cavities, which are real money makers for dentists.

You may only brush your teeth 3 times a day, but with fluoride in water you're exposing your enamel to it more frequently especially if you're a child who's drinking water often.

rustyconover··on Bacteriophage phi X174 DNA a message from extraterrestrial intelligence? (1979)
It could be that we haven't detected the interleaved frames and the audio subcarrier.

or

Maybe we're just not thinking like a "Vega"n would[1].

[1] - https://www.youtube.com/watch?v=-SbKE_U4b7U&spfreload=10

rustyconover··on A Salad Chain’s Surprise Ingredient: Tech Money
Anecdotally, sweetgreen is the best salad experience to me. There are cheaper places like chop't, simply salad or just salad but sweetgreen tastes better. It's almost as if have captured the experience of an Apple Store when you order your salad, I've never left unhappy or unfulfilled.

They're doing fantastically well, going before 2 PM in the afternoon generally results in waiting about 15 to 20 minutes just to get to be able to place your order, it's not that they are inefficient and making the salads it's that the demand is so consistently high.

My cofounder and I joke that we are in the wrong business when we go to Sweetgreen for lunch, customers really want their product and the demand for it is seems to be growing over time. This is a business to watch.

rustyconover··on Ask HN: Do you use a CDN for your API delivery needs?
Using a CDN for an API is also a good idea if the CDN allows large content uploads to be faster than commodity/cloud hosting. Cloudfront speeds up uploads to S3 in some circumstances on some networks (looking at you FIOS), because in some cases Cloudfront edge locations have direct connections to the various S3 regions instead of going over the commodity internet. This is why Cloudfront charges 0.02 a gig for uploads.

Furthermore, using a CDN in this way may be a good idea because you don't have to worry about front end server noise/internet traffic. Cloudfront does have a good record of keeping up to date with SSL, and other various upgrades. By using Cloudfront's behavior rules I can have some requests go to backend servers via an ELB, others go to S3 and still others to go to other places. The end user has no idea, the simply see the same URL that they always do. It is nice to have everything all neatly wrapped under one URL structure and not to have to worry about DNS or cross domain antics.

And if I wanted to do access control I can easily use Cloudfront's support for signed requests[1]. That way if a request comes into to a particular URL path I can require that it be signed or not. Hence eliminating requests to resource intensive parts of the application.

[1] - http://docs.aws.amazon.com/AmazonCloudFront/latest/Developer...

rustyconover··on Amazon DNS error
Route53 still is returning answers for records that are not aliases to Cloudfront.

If you have an alias to a cloudfront distribution the answers aren't being provided by the Route53 servers.

You can verify this with a dig:

dig mx [your domain like domain.com] - will probably still work.

dig a [name of alias like www.domain.com] - isn't working.

rustyconover··on Google break-up plan emerges from Brussels
Fascinating... Seems like 1982[1] all over again. It's an interesting observation that Europe seems to be the last bastion of what some would call market balanced regulation, as contrasted with the US's systemic winner take all corporate capitalism[2]. I miss FDR greatly.

[1] - http://en.wikipedia.org/wiki/Breakup_of_the_Bell_System [2] - http://en.wikipedia.org/wiki/Corporate_capitalism

rustyconover··on Google break-up plan emerges from Brussels
Fascinating... Seems like 1982[1] all over again.

It's an interesting observation that Europe seems to be the last bastion of what some would call market balanced regulation, as contrasted with the US's systemic winner take all corporate capitalism[2]. I miss FDR greatly.

[1] - http://en.wikipedia.org/wiki/Breakup_of_the_Bell_System [2] - http://en.wikipedia.org/wiki/Corporate_capitalism

rustyconover··on Ask HN: Could Netflix circumvent cable by broadcasting over the air? (Aereo)
Nothing really, but to preserve the experience of Netflix, you'd have to have on premise equipment cache the broadcast (the actual content) and the library of films you can watch instantly will be limited to the storage of your device.

Because the bandwidth purchased by Netflix will be limited and they'll need to rebroadcast certain content (maybe people's boxes were turned off) they just won't be able to keep everybody's box in sync all the time. And will be a worse experience.

I just think it is economically unfeasible for Netflix to purchase enough bandwidth in enough markets to preserve the same customer experience. To say nothing of the technological, signal propagation and equipment manufacturing challenges.

rustyconover··on Netflix takes up 9.5% of upstream traffic on the North American Internet
Depending on the rate of keyframes in the stream, it could be from anywhere from 3 to 10 seconds. And if the GOP[1] is even larger it could be longer.

[1] - http://en.wikipedia.org/wiki/Group_of_pictures

rustyconover··on Netflix takes up 9.5% of upstream traffic on the North American Internet
A few missing packets may not matter, you're right. MPEG has a lot of error checking and error handling built into the transport stream layer.

But I think the bigger reason Netflix uses TCP is because TCP has a much easier time with NAT traversal and not needing port forwarding. By looking and acting like normal web traffic it makes it easier to guarantee that things will just work rather than need any special accommodation.

rustyconover··on Romack v. Bitcasa, Inc
Apparently a judge still remembers what "Infinite" really means.

If only he would look into the numeric meaning of gigabyte when it comes to storage media.

rustyconover··on Help the GNOME Foundation Defend the GNOME Trademark Against Groupon
I support GNOME having contributed a tiny bit to the drafting of the Foundation's charter. But this issue seems to be a "big deal" just because they have to defend their trademark to keep their trademark. For which we can fault the USPTO.

As for Groupon making a serious inroads into point of sale software, doubtful. I'd almost play the long game on this one and wait for Groupon to figure out another way to lose money. Since that seems to be the only thing they excel at.

rustyconover··on Just Tell Julie
Not a bad idea, sometimes all it takes a reminder to the customer to get paid. But 20% is a steep fee to pay for picking up the phone and making a call. Especially on 10k+ invoices which are common with consulting.

If only there was a sliding scale. Or more than one "Julie".

rustyconover··on How we’ve made Raptor fast
Not deeply understanding copy on write[1] semantics for virtual memory paging and designing application servers seems just foolish.

I'll chalk this one up to the PR/marketing person probably not taking an OS course.

Still it would be nice if they really did go back and read a little W. Richard Stevens[2].

[1] - http://en.wikipedia.org/wiki/Copy-on-write [2] - http://en.wikipedia.org/wiki/W._Richard_Stevens

rustyconover··on She Tweeted Against the Mexican Cartels. They Tweeted Her Murder
The CIA must be the most organized part of our government to carry on decades long conspiracies and liaise with every nefarious group in the world! If only they could redirect some of this management "excellence" to the more deserving and productive areas of the government that could actually use it.

I just highly doubt the effectiveness and existence of any long running conspiracy. See:

http://www.thisisnotaconspiracytheory.com

rustyconover··on Nevada puts stop to ridesharing Uber for now
If Uber can break the Vegas cab cartel[1] it would be very surprising to me. So far the cab companies have been able to survive everything, they've even prevented the monorail from going to the airport. Which if it did go to the airport would eliminate so many fares, because once you get to your hotel you normally just walk everywhere else.

Since this is Vegas, I'd say the proverbial smart money is still on the side of the cab companies being able to force enforcement of the law. Las Vegas has perfected the science of aligning widely varied financial interests to preserve the status quo of business as usual.

[1] - http://en.wikipedia.org/wiki/Taxicabs_of_the_United_States#L...

rustyconover··on Researcher finds Tor exit node adding malware to binaries
Being a bit naive about Tor, what is there to prevent an exit node operator from doing some transparent traffic manipulation and injecting tracking pixels into non HTTPs webpages?

Or playing silly games like flipping all jpegs upside down?

rustyconover··on A Culture of Envy
Lets look at how envy drives some entire businesses:

1. Instagram - completely based around lifestyle envy and like count.

2. Pinterest - envy my "good" taste

3. Facebook - envy my life and my baby

4. Twitter - envy my wit and follower count

5. Linked.in - envy my job and connection count

6. Gmail (before open access) - envy my domain name for my email address.

7. eBay - Envy my sellers badges and review ranking

I think social networking in particular has a strong correlation to using envy as being a "dark" social pattern exploited for growth and stickiness.

rustyconover··on Doctor in New York City Is Sick with Ebola
If you asked 10 average people what they think "airborne" means in this context, I doubt they'd say there is a difference between wet and dry transmission. I'd say for the purposes of argument, if a guy coughs violently on you because he's sick there is risk you could get Ebola. If a guy vomits in the subway car, apparently there is a risk of Ebola transmission. I've been on the subway cars and in taxi cabs it happens more than you think. Do you think they bleach all of those things adequately? No way, the financial incentives don't align to properly do it.

The government is using semantics and spin to their advantage by saying it isn't airborne via dried viral transmission. The WHO agrees[1] that it also isn't airborne, but also admits surfaces can transmit the virus.

Most officials omit this detailed explanation since they have no adequate explanation of how to decontaminate the urban environment en masse if an outbreak does occur.

In the end we all have to assess our own risk profiles. Will I stand or sit next to somebody coughing? I doubt it. Or will I take mass transit if I can easily walk to where I need to be by leaving a bit earlier? Nope.

[1] - http://www.who.int/mediacentre/news/ebola/06-october-2014/en...

rustyconover··on Doctor in New York City Is Sick with Ebola
To borrow an idea from math, "doing good" isn't a commutative, infections and diseases are. Have some respect for others and slow your roll before going out during the 21 day post exposure window.

It's a bit like saying, "Hey I've saved lives over here so I have earned the right to be irresponsible over here". Because you know, karma balances out. No, the world doesn't work like that. And you aren't doing any good propagating this idea either because it encourages this privileged way of thinking.

As much as this guy isn't being vilified (and say what you want about the government spinning its story of ebola being hard to transmit), lets think clearly and rationally. He knew the risks that he could possibly be infected and decided to endanger others when he could have easily stayed home or gone anywhere to a more isolated environment (upstate NY is calling). It is well known symptoms generally show up by the 10th day. Today is his day 10.

It's very interesting that the government has locked down this guys apartment, yet if you need contact with bodily fluids to contract the disease why quarantine the apartment and surroundings? Could it be that droplets are a transmission method as many people are starting to suspect. Sneezing and coughing may spread these droplets to the floors and walls? And if that is the case, what about other objects that come in contact with saliva and other fluids like utensils, door handles, glasses...

rustyconover··on Technology changed product placement
It is not really all that hard to create all of the combinations for various ads. You can cache the optical flow[1] analysis of the source video. The optical flow won't change since it is determined by the source video. Then you layer in your ad projection, render with final result with the ad and the source video together and finally concatenate the rest of the video that didn't require projection.

Being that the screen time for these ads is quite short in comparison to the entire video, and the start and end times of visibility would be known for each ad placement you can just splice together the actual targeted video and not worry about the other parts of the video that don't have placements. Of course Mirriad may not be so heavily optimized yet in the workflow, but hey, they'll get there and it is only a few perl scripts with calls to ffmpeg anyways.

As for the servers needing to store different versions of the video a few points:

1. Storage is cheap, bandwidth or CPU is expensive. And we're billing the advertiser. Re-rendering videos for adaptive streaming is a cheap cost and there isn't generally a real time requirement. 2. If you don't want to store multiple versions and are using HLS for streaming delivery, you can just splice together the playlist of multiple optical flow rendered segments with EXT-X-DISCONTINUITY.

The problem is delivery via Youtube and being able to do fine grained consumer targeting. It would be better to be self hosted so you can use the various consumer targeting services like BlueKai and not have to build an entire segmentation platform.

[1] - http://en.wikipedia.org/wiki/Optical_flow

rustyconover··on Disney’s New Production Renderer ‘Hyperion’
Whenever I read about new renderers I think I'm completely intellectually inept even with what I think is a reasonably well-rounded computer science education. It is like reading about string theory in a way. Sure, I can grasp the concepts, but the details and minutia are fascinating and admittedly a little beyond my immediate comprehension. I remember when POV-RAY was amazing when it ran all night to produce just one image with some reflection on a 486.

How time and Moore's law flies...

rustyconover··on YouTube's joke of a fair-use appeal process
"I for one welcome our new fair use overlords..."

Really it's ridiculously frustrating to use Youtube for anything that could be copyrighted anywhere. If only swarm based video streaming services with WebRTC were a reality[1].

[1] - https://github.com/feross/webtorrent

rustyconover··on How to “get out of the building” while working full time?
First and foremost, reconsider signing any of these assignment agreements ever. If you're talented and the company wants you, you have plenty of room to negotiate. And since this isn't a compensation or revenue impacting deal point you'll should find leeway. If they say its our way or nothing, its some quick insight into the organizational structure and culture. Consider if you wish to aid and abet that organization and management.

It should be a point of personal principal to never sign an NDA or an assignment agreement or even employment agreement. Of course the any of these that come with 9 figure checks attached are worth thinking about. If you're trustable and upstanding with who you're working for and they are with you, that will be enough.

rustyconover··on Saeed Malekpour, programmer and political prisoner in Iran
I blame ignorance rather than religion. A particular religion is the flavor of the week or few centuries, but lack of actual understanding is the reason for this situation and most other religious strife. For if people understood what this man did, like all of us do, they'd see their accusations are without merit.

Education and religion were tightly intertwined for centuries and still are in the regions with most the perceived "problems" now. Often the only education you can receive in these countries and regions is at a madras and perspectives outside of the dogma in the curriculum don't exist and are suppressed.

Say what you want about the US and Western education system's failings, but it sure gets this part of the test 100% right. Of course, discounting strange behavior in Texas regarding creationism and disputing evolution. And a few other rural places pushing their locally artisan agendas of ignorance.

rustyconover··on Deploy a Bitcoin Arbitrage Bot with One Click
There is a common refrain about trading strategies or algorithms, if it worked people wouldn't be talking about it. They'd be too busy exploiting the opportunity to blog about how they're making money. And least of all would want to tell others how to do it so they'll make less. So as a financial opportunity, I'd consider this highly suspect.

But that all said, it is cool to deploy in one click.

rustyconover··on The downfall of Quora (2013)
A meritocracy is a type of government not an economy. Or possibly I don't understand your question.
rustyconover··on The downfall of Quora (2013)
"A reputation based economy is what we're moving towards", we should be resistant to that. I think it would be fair to say a "reputation based economy" is a synonym for crony capitalism -- I'll only do business with you if I know you.

This is a socially unfair economy at best, and at worst will generate inequality as social cliques will continue to preserve and enrich themselves and "the people they know". If we're going to move more toward social and economic fairness this isn't the direction to go.

I'm comfortable knowing that Whole Foods takes dollars rather than Klout points or retweets. That way anyone who can make a dollar can eat and not worry about starving because they failed to impress some arbiter of social currency. Reputations aren't fungible hence they are flawed as a just economic currency.

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