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sinak

28,688 karma · joined April 7, 2011

Tech/political activist, wireless geek, founder.

CEO at Waveform.com, Technology Fellow at EFF, co-founder/advisor OpenSignal.com, Repair.org board member

sina dot khanifar at gmail dot com.

http://twitter.com/sinak

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sinak··on Google-backed drones will drop library books to kids in SW Virginia
OK a bit of self-promotion but this is what we help people all the time. You can either run a hotspot with external antennas or put in a booster. https://www.waveform.com

Happy to help if you want to email me.

sinak··on 5G and Shannon’s Law
Author here. Sorry about that. I just turned it off.
sinak··on Apple crushes one-man repair shop in Norway’s Supreme Court
If you're in the US and agree with Right to Repair, consider joining Repair.org with an individual membership, or asking your company to join:

http://repair.org/join

sinak··on Ask HN: Is there ANY scientific evidence of 5G being harmful
I think the modulations schemes are largely the same across the board for 5G. Also 4G LTE and 5G signal waveforms both look a lot like CDMA.
sinak··on FCC will require phone carriers to authenticate calls by June 2021 [pdf]
About a year ago I changed my voicemail to say "Sorry I missed your call. I don't listen to voicemails, please send me a message by SMS instead."

I couldn't recommend doing so more. Text is so much easier, even if you have voicemail transcription.

sinak··on Show HN: FounderPhone – make customer support personal with SMS
We currently use Front to achieve something very similar:

A few questions:

- Do you support MMS (photos and videos)?

- Do you support creating auto-reminders to follow up with specific customers?

- Can you set up an autoresponder that responds when users sends a specific key message? Eg if the customer sends "Start" then can you autoreply with a canned message?

sinak··on Asimov’s Empire, Asimov’s Wall
The article doesn't claim that the harm to women was just from lack of mentorship. It states that Asimov's (repulsive) behavior made the sci-fi community inhospitable for women, particularly given his unique position as an incredibly popular author.

From the article:

> From an early age, Asimov was drawn to the communal aspects of fan culture, but he made it more difficult for women to experience that sense of community. Women have long occupied an ambiguous place in science fiction, where they have been alternately welcomed, dismissed, and harassed. Asimov took advantage of what he called the rising percentage of “shrill young girls” at conventions in the 1960s, and his unique position at such events—he was invariably the center of attention—made his example especially insidious. His admirers looked to him as a model of how to behave, and fandom was complicit for years in his serial misconduct in ways that have never been fully acknowledged.

> Asimov has always meant a lot to me, and the best qualities of his work—his rationality, curiosity, and imagination—changed thousands of lives for the better. Yet the visible edifice of his hundreds of books needs to be balanced against the unseen wall that he built around the heart of science fiction. His actions had a negative impact on an untold number of women [...]

sinak··on Inaccurate chart led to unwarranted fears of 5G wireless technology
The article states that 5G signal doesn't penetrate the body far enough to be able to touch the most important organs. mmWave 5G in the 28 GHz band is significantly attenuated by a window, let alone skin.

10 mw/cm2 for critical tissue doesn't happen. The power levels by the time the signal reaches important body tissue are much, much lower than that.

sinak··on Court Allows EFF's First Amendment Challenge to DMCA §1201 to Proceed
To be clear, this lawsuit specifically takes on §1201, the anti-circumvention provisions of the DMCA.

From the Wilson Sonsini Press Release:

> In a big win for critics of Section 1201, the court held that Green and Huang satisfy the injury-in-fact requirement for Article III standing, meaning they have standing to challenge the statute on First Amendment grounds moving forward. In another big win, the court affirmed that "code is speech"—and thus protected by the First Amendment—and that using code to circumvent technical protection measures "arguably implicates" First Amendment rights as well. In so doing, the court dismissed the government's assertion that Green and Huang's desired acts of circumvention are not protected speech. Finally, although the court dismissed Green and Huang's facial challenges to the DMCA as an unlawful prior restraint, it concluded their "as-applied" First Amendment challenges can move forward, denying the government's motion to dismiss that claim.

https://www.wsgr.com/wsgr/Display.aspx?SectionName=publicati...

sinak··on Skymind (YC W16) raises $11.5M to bring deep learning to more enterprises
We share an office with the Skymind team, and they're an awesome group. Congrats to them on their round!
sinak··on Volk Fi: Distributed network smartphone
The frequencies are what I was curious about as well. To have a half mile range at relatively low powers it would need to be a low frequency band.

I'm guessing they haven't bought licenses from the FCC, so my bet is that they're using the 900 MHz ISM band.

There's only 26 MHz of spectrum in that band, which isn't much, particularly for a mesh setup that won't be particularly spectrally efficient.

Even with a high 30 dB signal to noise ratio, the Shannon channel capacity in a 26 MHz band is 50 Mbps. MIMO helps a bit, but even in ideal real-world conditions you'll likely have at most 50 Mbps to share between all the users connected to a node. Spread that across a few users/mesh hops, throw in some packet retransmissions and noise, and it's not nearly enough to compete with LTE networks at any meaningful user density.

Incentivizing users to create as many nodes as possible is a good idea, as that allows lower power transmissions and better frequency reuse. It's still a huge struggle to get anywhere near commercial wireless speeds, particularly in areas where there are fewer nodes and a higher density of users.

sinak··on What Minimum-Wage Foes Got Wrong About Seattle
The study did look at loss of employment as well. The conclusion states:

> Evidence indicates that these workers experienced no significant decline in their likelihood of being employed and a modest reduction in their hours worked over the six quarters following the first and second wage increases.

sinak··on Copyright Office Ruling Imposes Sweeping Right to Repair Reforms
Links to two of the main organizations involved in case anyone wants to donate:

https://repair.org

https://www.eff.org

sinak··on Let’s Get Better at Demanding Better from Tech
Cached version: http://webcache.googleusercontent.com/search?q=cache:-S8H-gz...
sinak··on John Perry Barlow has died
There's a great collection of Barlow's writing here in EFF's archives:

https://w2.eff.org/Misc/Publications/John_Perry_Barlow/

sinak··on Pineapple Fund: Donating $86M of Bitcoins to Charity
There are three general buckets of work that EFF does. All three are focussed on protecting user's online rights to free speech, security, and privacy - but each achieves that result in a different way:

* Legal: Taking on precedent-setting cases (e.g. establishing code as a form of speech, overturning Betamax Doctrine, challenging censorship laws). Full list is here: https://www.eff.org/victories

* Technology: Helping launch projects like LetsEncrypt (now its own org), Privacy Badger, Certbot, Panopticlick, Democracy.io, HTTPS Everywhere.

* Advocacy/activism: Pushing state & federal legislatures in the US and around the world to pass laws that protect user's rights, and not to pass laws that would harm them. Also to push regulatory bodies (e.g. FCC) similarly.

(I'm a Tech Fellow at EFF but not speaking for the org in any capacity)

sinak··on We Fight for the Users
The video you linked to is by "Project Visuals" which is run by James O'Keefe.

O'Keefe is a conservative activist has a storied history of "severely editing" videos to mislead: https://en.wikipedia.org/wiki/James_O'Keefe

sinak··on Ask HN: How is your standing desk working for you?
Similar, but I went a bit overboard with my setup and created a sliding platform for my chair: https://cl.ly/2e3q0B0f2O3o
sinak··on “Restoring Internet Freedom” Notice of Proposed Rulemaking [pdf]
Future lawsuit will refer to this NPRM as evidence. As a result, the FCC's lawyers spend a lot of time trying to protect themselves, which means the text of the NPRM is worded in an overly complicated way.
sinak··on “Restoring Internet Freedom” Notice of Proposed Rulemaking [pdf]
It's very much on purpose: the language is carefully crafted to protect the new rules against future lawsuits.
sinak··on “Restoring Internet Freedom” Notice of Proposed Rulemaking [pdf]
This is the link for submitting comments: https://www.fcc.gov/ecfs/search/filings?proceedings_name=17-...

Just click "New Filing" or "New Express" depending on what kind of comment you want to leave.

We just submitted comments here in case you need ideas: https://ecfsapi.fcc.gov/file/DOC-56ec3d08ba000000-A.pdf

sinak··on The FCC plan to undo its net neutrality rules
Here is the "fact sheet" that Ajit Pai distributed at the event at the Newseum today: https://twitter.com/davidshepardson/status/85728851922775655...

Also of note, YC, TechStars and Engine Advocacy released their "Startups for Net Neutrality" letter to Pai this morning: http://www.engine.is/startups-for-net-neutrality

sinak··on Launch HN: Hivy (YC W17) – An App to Get What You Need at the Office
We're interested too - sent you an email.
sinak··on Show HN: U.S. Legal Concepts for Founders – Online Handbook
This is really great. One feature request: it'd be great to be able to view the whole handbook as a one page document (e.g. I want to save it to Instapaper to read later) or as a complete PDF.
sinak··on The power of prediction markets
Robin Hanson proposed a type of government based on prediction markets that he calls Futarchy [1]. Vitalik Butalin has suggested it as a governance structure for DAOs [2].

[1] http://mason.gmu.edu/~rhanson/futarchy.html

[2] https://blog.ethereum.org/2014/08/21/introduction-futarchy/

sinak··on Show HN: Jpeg.io – Convert any major image format into a highly optimized JPEG
If you need to do one-off Mozjpeg compressions, I highly recommend imageoptim's online compressor, which you can find here:

https://imageoptim.com/mozjpeg

It has sensible defaults and is super-easy to use.

sinak··on Ask HN: Who is hiring? (June 2016)
Electronic Frontier Foundation | https://eff.org | San Francisco, CA | Software Engineer

The EFF fights for an Internet free of surveillance and censorship.

EFF is looking for a Software Engineer with:

* Strong programming skills with one of our server-side languages: Python, PHP, JavaScript, or Ruby.

* Familiarity with HTML, CSS, and client-side JavaScript.

* A love of free and open-source software. Experience with a CMS like WordPress or Drupal is a plus.

This is a full-time position based in EFF's San Francisco office. Because our team benefits from close communication with the attorneys, technologists, and activists at EFF, working remotely is not an option.

EFF is an amazing place to work. You'll join a team of developers and designers to lead high-impact campaigns that protect civil liberties online.

Apply here: https://www.eff.org/opportunities/jobs/software-engineer

(Dear recruiters/outsourcing agencies: Please don't contact us as we're not interested at this time.)

sinak··on Steve Blank: 'VCs Won't Admit They're in a Ponzi Scheme'
I'm currently faced with this. We have a bootstrapped company with offices in SF and Southern California. Office space in SoCal is easy and cheap, but trying to find just 3 desks for our new SF office has been a nightmare. Places like WeWork are asking $2500 for a tiny office with 4 desks.

(Obvious plug: If you happen to have a few desks or a small office spare, please email me.)

sinak··on Housing in the Bay Area
Source?
sinak··on Reflections: The ecosystem is moving
I agree with Moxie's assertion: federated services are losing. As it stands they can't keep up with the rate of change and iteration currently offered by centralized protocols.

But rather than this being a problem with federation itself, perhaps it's an issue with existing implementations. Things like XMPP give protocols so much flexibility with extensions that upgrades become costly and difficult to implement. Others, like HTTP, SMTP, and IRC are updated very slowly.

It seems like it should be possible to implement federated protocols that are focussed on fast iterations. For example, a protocol could specify that each version has a fixed lifetime of just one month, and require all clients and servers update to the new release in the last week of that month. Such a fast-paced protocol would have some disadvantages over slower ones (e.g. longevity), but it seems better suited to the pace of modern software and service development.

But I've never developed a protocol, let alone a federated one. I'd love to hear some potential problems or examples of failed protocols that have taken this kind of approach.

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