Conference Speaking And Presentation Skills: Mike Hall Interviews Tim Bray | GOTO Conference 2014

Well I've been mixed up in my, you know, my most most recent job was at Google and I spent a couple of years in the Android groups there and then subsequently did work in other areas and I've become keenly aware of sort of the tension in the marketplace between people who are sort of browser and web technology centric and people who are mobile cent ric and I think there's are some really good reasons to worry that the notion of the browser is losing its centrality in the world of app development.

Now this is unscheduled but I'm also going to take a side trip into privacy.

Because I've been doing a lot of work on that recently and in the era of Ed Snowden, you know, we should all be worried about that. Yes. You may think you don't have a privacy problem in your work, but you probably do.

Well, I mean, even with services that are very popular like HipChat recently, I don't know if you're familiar with, they had a change in their privacy policy when our one-on-one chats are able to be exposed to your employer. I mean, even things like, like that. And when you talk, but to go back to your original keynote, when you're talking about browser versus non-browser, are you talking about native apps versus... Yeah, I'm talking about native apps.

You know, increasingly if somebody's going to build an app, they're actually going to build three apps. They're going to build, you know, a browser version, an iOS version, an Android version, and that's already a problem because, you know, you're having to replicate your work multiple times to get a result. And who knows, you know, Windows Mobile could get a good foothold and we'd all be doing our work four times in a row. So right there there's a problem. And then even different form factors. Well, you know, that just comes with the game. That's actually, you know, not the big biggest part of the problem. And whereas, you know, there's a lot of advantages to mobile apps and people are moving in that direction for reasons, some of which are good, you know, there's some downsides to that too. And we need to, you know, make sure we understand what the upsides and downsides are of having a browser-centric worldview as opposed to a native mobile app -centric worldview and make the right choices in an intelligent way. And just, you know, to inter weave that into the privacy, is it a good thing that we're moving towards native apps versus browsers as far as, maybe, privacy is concerned? So the reason I ask is, I mean, I know cookies and spying, you know, cross-browser checking of cookies and tracking, that's one thing you can do in a browser but maybe you wouldn't be able to do like that in a native app. Yeah, I suppose, but I think that's a small issue compared to the big issues. And the big issues are, you know, the actual criminals and bad guys who are trying to subvert your account and steal your information and your money. And on the other hand, the over-enthusi astic employees of our governments who feel that, you know, everybody would just be safer if they knew everything about everybody and why would anybody want privacy unless they were doing something wrong? I think, you know, they have much bigger tools than cookies. They have, you know, court orders and national security letters for us to worry about. Well, I mean, there was actually a tweet I saw this morning about the amount of data that the NSA has collected was in the order of exabytes, but it would take 350 years to sort it. That, like, is there a point where they just have so much information and it becomes... Well, Google's got way more than that. Oh, okay. And Google, you know, can give you sub-second results on searching the whole thing. So, you know, that doesn't really sound like a... I wouldn't buy that argument. I think that if they employ smart people who know how to index things and so on, which they do, they would be able to make good use of that stuff. So, I mean, that kind of describes it. There is a precedent for having extremely large... I mean, we use it every day. It's become a household term. You know, grandmothers who've never used a computer, they know to Google for something.

And they can sift through data like nobody's business. That's right.

I mean, Snowden's obviously a very popular topic , but... Well, I think we need to buckle down and think about it. I think that, to start with, you know, the room I'm talking to today is going to be full of people who build apps. And a question I would have for them is, "Are you really confident that your app will work if I address it with HTTPS URLs as opposed to HTTP URLs? " Even better, you know, does your work...

Because if you do that, then you've removed, you know, one huge window of vulnerability, ranging... which is open to anybody from the NSA to some guy running fire sheep in a coffee shop.

And I think it 's, you know, it's incumbent upon the app builders to take a big piece of the responsibility for preserving the privacy of the people who use it. And that means they not only need to do the obvious things like use HTTPS, they need to think very carefully about, you know, what information they gather about people, what they store about people, what they tell people, what their policy is as regards legal demands that they receive. And they need to be clear about that stuff. And because laz iness produces a really bad result.

Well, you know, having been guilty of that myself, as far as looking at the expedient problem, like, over the last few years, or several years ago, XML was the de facto way to exchange information. But over the last couple years, JSON has kind of become more popular. And there's... I've heard pros and cons about adopting a very strict semantic language like XML that can ... excuse me, a more easily correct description of a language through XML versus kind of a loosey-goosey JSON.

Where we're just like, what is the least amount of effort I need to do to push data over the wire?

Well, you may be right, but that's okay. I mean, there's so much work to do that we should all be trying to do the simplest thing that could possibly work. You know, do things in the simplest way that could work. Then you worry about your constraints. And as regards XML versus JSON, I mean, JSON is clearly, clearly superior if you're exchanging database records and file updates and that kind of stuff. If you're exchanging blog posts or credit reports or medical health records, XML wins for that. So they have different areas of strength. But I would worry not so much about the form of the content, whether it's XML or JSON. I'd worry about, is it traveling safely across the network in a way that somebody who's using my app can be really, really sure that they're connecting to me, not to somebody else, and that nobody else can watch the stuff going along? And then having established that, sort of the bare minimum barrier to entry, then you have to answer questions like, okay, if I use your app, what information are you gathering about me?

And, you know, you could write, there's a real big takeaway in letters of fire 50 feet high, and they say, don't surprise me. You know, if you, people are, end up getting a nasty surprise about what you're doing with their data, the results will be really bad for you, and you won't say you really want to avoid that. All right.