ulturally, we are definitely seeing people being to ask hard questions. There's been a major shift over the last year. The NSA revelations played a big part but there are all sorts of other issues too, like inequality and gentrification in the Bay Area, and labor abuses everywhere from Amazon's warehouse, to Apple's factories, to start-ups like Uber and TaskRabbit.

There was all this enthusiasm about amateurism and the idea that people could now just make videos in their bedroom, or blog news stories and share it online, and isn't this great? Now we can do it just for the love of it and not try to be professionals, corrupted by careerism.

And of course the things that get the most attention online tend to be similar to those that succeeded under the old model.

There's something odd about telling people, artists, that they need to work for free to be pure while you're sitting there getting a salary that ultimately is paid by a generation of young people going deeply into debt for their education.

I think that overall, ultimately the impact of advertisers calling the shots is a more cloying, complacent culture. For example, it was just announced that Unilever is branding environmental content at The Guardian. How radical or pointed can that content be?

It wasn't that people wanted things for free and asked for advertising to fund it - it's that these companies wanted to amass an audience whose "eyeballs" they could sell, and they gave people things for free to do that. Free services and content has been foisted upon us because there wasn't the will power to explore other options.

Technology and television didn't dictate one path or the other - it was civil society and public policy intervening in creating alternative funding models. So I think that's one of the questions for our time: do we want to intervene in this model or completely acquiesce and leave it to the unfettered, not-actually-that-free market? Neither path is inevitable.