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“Ma’am, the cloud is coming from inside your house”

July 30th, 2009  |  by jz  |  Published in Future of the Internet, cloud  |  8 Comments

There’s lots of talk, and confusion, about the “cloud” and “cloud computing.”  I’ve recently contributed to it (the discussion, at least, and possibly the confusion) with some of my worries, and in some technology and vendor circles that’s been seen as controversial. I wanted to share some thoughts about just what the cloud is – because for the purposes I care about, it covers much more than people think, and I’d hate for debates about this stuff to get hung up on semantics about what counts as cloud and what doesn’t. By understanding just how broadly the features we associate with cloud computing are entering our lives, we can see the importance of maintaining freedoms that it otherwise naturally tends to diminish.

There are a few definitions out there – not surprising, since “cloud” is a metaphor that could work for several phenomena.  One, known in Internet engineering circles, refers to the “middle” of the Internet – that place amidst the hops data can take from sender to receiver that is remote from both of them. A second definition thinks of cloud as “swarm” – so distributed computing or data storage, where lots of computers might host a bit of code (think SETI@home and Harvard’s IIC) or data (think Tribler). (Interestingly, this is the opposite of the first definition: it contemplates everything but the middle.)

A third definition, more in use in discussions of the cloud today, speaks to an asymmetry between sender and receiver: one is a client – the “user” of a service – and the other is the service itself.  Examples are you and your gmail (your mail is stored in “the cloud,” in that case at Google); an online Flash game at sites like FlashArcade; and Microsoft’s “Office Live,” where your documents and spreadsheets are both stored and used online with Microsoft.  The latter is sometimes called software-as-a-service (awkwardly, “SaaS”), denoting that the code for it is running in a central place – where a vendor can shape and update it at any moment – rather than on your own PC or other device.

This idea of cloud computing is increasingly prominent because it’s finally attainable. For many people Internet access is ubiquitous and continuous. With Net access a constant – often achieved through smartphones, where an absence of a wi-fi signal need not mean no access, since the cellular network can still be used – there’s less of a need to have a PC or other device be self-sufficient.  Data and code can be accessed and run far away, with the user barely noticing the difference, and there are lots of pluses to doing things this way, even as I’ve made the case that this shift carries risks that should be dealt with.

But there’s another factor at work that pushes outward the definition of “cloud computing.” It arises from the adoption of what I call “tethered appliances.” These are devices where the code and data may well remain near the user, so they do not at first glance fit into any of the definitions of the cloud. Think Amazon Kindles, where your books can be kept on the device (and thus accessed on an airplane without Net access); iPhones, where you download “apps” to run on your phone; and TiVos, where your recorded shows are stored on a hard drive inside the box.

But in a key respect – that of your freedom to control your code and data – these devices act like cloud services.  That’s because the vendors have privilege to say how they will operate long after you’ve brought the devices home, updating the way the devices work, and their contents, over the Internet or a cellular network. Sometimes that control is total. For example, no outside code is permitted on a Kindle or TiVo.  Sometimes it is partial: Apple allows outsiders to code for the iPhone, but code must be vetted by Apple and distributed exclusively through the iPhone apps store.  For all of these devices, it’s more like allowing Amazon and TiVo and Apple to set up a beachhead in your home (or pocket), a little server of their own that’s a cloud service that happens to be near you:

[W]e need to rethink our vision of the network itself. “Middle” and “endpoint” are no longer subtle enough to capture the important emerging features of the Internet/PC landscape. It remains correct that, from a network standpoint, protocol designs and the ISPs that implement them are the “middle” of the network, as distinct from PCs that are “endpoints.” But the true import of this vernacular of “middle” and “endpoint” for policy purposes has lost its usefulness in a climate in which computing environments are becoming services, either because individuals no longer have the power to exercise meaningful control over their PC endpoints, or because their computing activities are hosted elsewhere on the network, thanks to “Web services.” By ceding decision-making control to government, to a Web 2.0 service, to a corporate authority such as an OS maker, or to a handful of security vendors, individuals permit their PCs to be driven by an entity in the middle of the network, causing their identities as endpoints to diminish. The resulting picture is one in which there is no longer such a clean separation between “middle” and “endpoint.” In some places, the labels have begun to reverse.

So when I say I’m troubled about the cloud, it’s a shorthand for being troubled about consigning some of our longstanding technological freedoms to others. They can affect (for their own reasons or by government order) our digital environment in real time. This is comparatively new in the public’s experience of technology, even as we’ve seen forms of cloud computing within firms for years – places where we might naturally not care as much about personal freedom, since the computers (and most of the activity taking place on them) belong to the company. I don’t begrudge operators of cloud-based services from rejecting this expansion of the definition. For their purposes, it can make sense to distinguish between stuff stored at home and far away, whether or not a home device is controlled remotely by a vendor. But for the areas many of us should be caring and thinking about, a tethered appliance is tantamount to being in the cloud, and the sea change this represents has to be dealt with, especially since it’s appealing for so many other reasons – such as security and convenience.

Responses

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  1. Bertil Hatt says:

    July 30th, 2009 at 10:36 am (#)

    What you seem to describe is actually not about a graph with ends and hubs, but about having a service that is not provided by one agent, but by a system: such a concept was impossible to set up contractually at first, so IP-like freedom made it possible, where not one actor could have an impact of the others; once this prove it was econmically relevant, many interested parties came, each with their agenda, and some decided that they could influence the combination beyond the smallest coherent module. Your issues are not with the cloud, but what is the default when a aggregated service has no legally enforced aggregator.

  2. Saqib Ali says:

    July 30th, 2009 at 12:40 pm (#)

    Professor Zittrain,

    Interesting blog post. I had a long discussion about the Cloudy nature of Amazon Kindle with my colleagues after reading your Op-Ed in NYTimes.

    I think there is a key difference between, let’s say, Google Apps and Amazon Kindle. You can un-tether a Kindle, thus preventing Amazon from controlling your device. But you can not do the same with Google Apps. I know this I small difference and gets cloudy (no pun intended) when we start taking about Google’s off-line mode, but is still a key difference.

    Just my $.02.

  3. Professor Zittrain expands on what he means by Cloud Computing: « Sapientia et Doctrina says:

    July 30th, 2009 at 3:30 pm (#)

    [...] 30th 2009f July 2009 08:29:56 PM Professor Zittrain expands on what he means by Cloud Computing: http://futureoftheinternet.org/an-expansive-cloud leave a comment « But I must unlearn what I have learned. Meditate on this, [...]

  4. Andrea NGOMBET says:

    August 2nd, 2009 at 2:45 pm (#)

    Thanks for your iTunes U lecture about the future of the internet. It was pleasant and very interesting.
    But I need to ask when would you come in France for a lecture? Please let me get in touch.
    We do have a huge problem in France with the internet due to many restrictive law.

    Cordialement,

    Andréa.

  5. Reading blogs #17 : ::: Think Macro ::: says:

    August 2nd, 2009 at 7:19 pm (#)

    [...] as a concept.  Here is also Jeff Bezos’ apology.  Finally, to follow up, JZ has published a post reflecting on the discussion about his op ed and the definitions of “cloud” – [...]

  6. Julian Ranger says:

    August 3rd, 2009 at 11:43 am (#)

    It is interesting to think of this from the perspective of a non-IT specialist user, your average person at home or in the office. To them, I think the cloud is anything over which they have no control, i.e. outside of their own devices. In this way the cloud starts at the point the internet data leaves their home and encompass the whole of the transport medium, and all the processors and distributed storage that provides the services they consume.

    What a user does not expect to be the cloud is anything under their control – this means that iPhones, Kindles, et al to which you refer would by most users views be considered to be under their control. That was one reason I think there was such a storm when Amazon took back/deleted books recently. The fact that these ‘smaller’ devices can’t load other things/aren’t fully flexible doesn’t make them cloud from a user’s perspective.

    The key point for a user is, I think, that if I have created something (my data) or bought something (becomes my data) then it is my data and I own it and I, not the ‘cloud’, decide what to do with it. The burgeoning question is therefore how I use that data and allow others to use it. Too often using the cloud means giving away too much control of my data without me really knowing it. I am not against giving away ones data for reason – for example the Apple Genius feature is to me a great reward for telling Apple what is in my iTunes library – I just would like it to be a more knowledgeable exchange.

  7. Are Your Virtual Assets Safe? « Play as Life says:

    August 4th, 2009 at 8:26 pm (#)

    [...] well, thanks to cloud computing and digital content distribution [Cyber scholar Jonathan Zittrain expresses concerns about the dark side of cloud computing]. I’m not suggesting that we distrust technology, but as a normal consumer, I find that more [...]

  8. Google liberates data :: The Future of the Internet — And How to Stop It says:

    October 11th, 2009 at 4:44 pm (#)

    [...] Zittrain has spent time on this blog and elsewhere discussing the future of cloud computing. One of his frequent suggestions is that it [...]

Blog

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  • Fried Androids?
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    However, the remedy Oracle wants couldn’t be more clear.  It asks for monetary damages to compensate it for its financial losses and punitive damages because it alleges Google “knowingly,” i.e. intentionally, violated its IP rights.  In addition, Oracle requests “[a]n order permanently enjoining Google, its officers, agents, servants, employees, attorneys and affiliated companies, its assigns and successors in interest, and those persons in active concert or participation with it, from continued acts of infringement of the patents and copyrights at issue in this litigation” and “[a]n order that all copies made or used in violation of Oracle America’s copyrights, and all means by which such copies may be reproduced, be impounded and destroyed or otherwise reasonably disposed of.”  The last one is the kicker: just like TiVo’s demand of EchoStar, Oracle wants the court to tell Google to reach into Android owners’ handsets and rip out the offending material, leaving innocent consumers with a gutted shell — and the remainder of their two-year service contract.

    The destruction remedy applies only to the copyright claim.  If the case goes to trial a jury could conceivably find Google liable for patent infringement but not copyright violation.  And even if it did, the district judge has discretion over what relief to grant.  Plus, the appeals process could hack back overbearing damages.

    But as long as it is on the table, the availability of such a remedy is a very big stick.  Even if Google believes it should win the suit, betting on that outcome doesn’t make sense if it means risking having to destroy consumers’ phones or fighting a long and uncertain legal battle after the destruction provision is awarded, instead of paying conventional monetary damages.

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    The availability of destruction as a remedy smothers innovation.  If Oracle can’t strong-arm Google into settling but wins at trial and is awarded the destruction provision (and it survives appeal and Google eventually capitulates instead of balking and riding a series of contempt proceedings into a draconian post-litigation settlement or bankruptcy), (1) consumers would have their phones replaced with bricks and think twice before buying new tech again; (2) Android developers would see their platform and all their apps evaporate; and (3) in the future, companies would likely waste time reinventing the wheel to avoid Google’s court-ordered fate rather than developing new technologies.  There is a storm brewing, brought on by the rise of tethered appliances and the thicket of software patent regulation.

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  • It’s hard to know what to make of the Google/Verizon deal since until earlier today both companies have denied that there is one. And it’s hard to argue about net neutrality because it means so many different things to different people. I’ve got lots of reading to do to catch up on the newly released set of principles from the companies, but in the meantime here are a few thoughts on the topic.

    The core question is this: when Internet Service Providers turn out to have captive audiences of subscribers — either because their customers have few if any alternatives for broadband, or because switching is complicated and cumbersome, or because ISP practices are obscure and thus hard for customers to adapt to — how far should they be allowed to leverage that captivity?

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    In the past this dilemma between large ISPs has been resolved through peering arrangements that have amounted to simple handshakes: I’ll carry your traffic aimed at my subscribers if you carry mine aimed for yours, and we’ll call it even.  Today those deals are more complicated, and their details are typically trade secrets.  But we know this much: Verizon, like other broadband providers, already says to its customers: pay us more and we’ll give you faster Internet access.  That’s not controversial.  So should Verizon also be able to make a similar offer in the other direction, to faraway upstream content providers?  Verizon could say to Google: regardless of what you pay your own ISP to get your bits launched on the Internet, pay us more and we’ll make sure your YouTube videos get to our subscribers all the more quickly as they come in for a landing.

    Google might well be able to pay — and then leave poorer content providers behind.  The next two guys who want to start, say, ShmouTube won’t be able to do it if they’ve got to negotiate business development deals with one ISP after another in order to reach those ISPs’ subscribers.  And that’s the real danger: when each ISP can, in effect, speak on behalf of its unwitting subscribers, serving as the troll under the bridge offering up different conditions for access to them, the economics of the Net will start to favor the consolidated, the well-connected, the well-heeled.  Verizon and Google each have reason to take the trouble to negotiate with one another to begin with — they’ve both big, and each can offer uniquely desirable benefits to the other.  The generative power of the Internet is that it has offered a perch for anyone who wants to plant a flag in the ground.  Set up www.mynewamazingwebsite.com, and people the world over can beat a path to it or not as they please.  That represented a huge change from the proprietary consumer networks of the 1980s and 90s, where AOL or CompuServe got to say who could have a presence within their gated communities.

    It may turn out to be too simple to have a blanket rule against ISPs charging faraway providers for access.  There are even some outcomes that make that desirable for consumers — imagine if Internet access were free, with ISPs beating down your door to provide you with broadband, because if you choose them then they’ll get paid by Google et al. for the privilege of sending bits (and ads) to you.  That’s a dubious outcome for a number of reasons, but it’s theoretically possible.  But much more dangerous is if ISPs get to pick and choose: one deal for Google, another for the New York Times, a third for eBay, and no deal at all for mynewamazingwebsite.  In a medium in which so many of the giants were yesterday’s scrappy upstarts — eBay, Google, even the Web itself — it would be a travesty to freeze out the next round of innovation from odd corners by deploying an impenetrable web of contracts and fees.  That’s what I take to be at the core of Chairman Genachowski’s comment that “Any outcome, any deal that doesn’t preserve the freedom and openness of the Internet for consumers and entrepreneurs will be unacceptable.”

    Update: More thoughts here.

About Jonathan Zittrain

jonathan zittrain

Jonathan Zittrain is Professor of Law at Harvard Law School and co-founder of the Berkman Center for Internet and Society at Harvard Law School

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