Thanks for the heads-up. It is a good way to get more, relevant information quickly.
But given that the link is an hour-and-a-half long, and that article is quite brief, it would be more accurate to say that he's filling in some of the content of his presentation with some-of-up-to-all-of his article. (But the link must have a lot more than what's in the article.)
I may listen to all of the presentation in the near future, on the chance that he will have something fresher and newer to say than things he's already said about his "war on general-purpose computers" thesis.
Now that I have listened to the whole video I still think the article is a great tl;dr;
it includes a non-trivial Q & A session. The thing that stood out for me is a statement my Lessig that society is governed by Code, Laws, Norms and Markets.
Cory Doctorow has been making and refining these points for a while now. If you have read his essays or seen him speak you may have heard some of those paragraphs already.
Thanks for the link. Do you know what he means when he says the "World Wide Web Consortium continues to infect the core standards of the web itself to allow remote control over your computer against your wishes?"
In standard HTML a server sends you some text bits and data streams and your browser chooses what it wants to do with them. Save them, display them on the screen, ignore them, etc. With DRM the browser has to be specifically engineered to do not what you want it to do, but what the person sending the data wants it to do. This is almost always done inside of some kind of 'black box of digital magic', be it software or hardware. If you had control or insight of the black box it is likely you could subvert control of the encrypted media.
Now I won't say that it directly enables control over your browser any more so than Flash does (Only 76 CVE's in 2014), but every black box is a point of attack for hackers.
DRM ensures that browser doesn't always behave the way you want it to behave. You no longer have full control over it, you give a part of it away to 3rd party.