As an individual navigating this reality, you have to make choices to survive. Sometimes you happily work for free if it's something you love and believe in. I'm not categorically saying that working for free is bad. I'm just looking at the broader implications of it, and also challenge this idea - and again, this is an argument made by certain people in the tech world - that amateurs are automatically more pure and will triumph over stodgy professionals.

Also, after Examined Life was finished I found myself thinking about the way creative opportunities and distribution channels were shifting. Should I be showing my films in theaters or just think about getting them out online? There were other issues, too.

We like to say the Internet is the ultimate library. But libraries are libraries because people come together and fund them through taxes. Libraries actually exist, all over the country, so why is it such a reach to imagine and to someday build a public institution that has a digital aspect to it? Of course the problem is that libraries and other public services are being defunded and are under attack, so there's a bigger progressive struggle this plays into.

Those who applaud social production and networked amateurism, the colorful cacophony that is the Internet, and the creative capacities of everyday people to produce entertaining and enlightening things online, are right to marvel. There is amazing inventiveness, boundless talent and ability, and overwhelming generosity on display. Where they go wrong is thinking that the Internet is an egalitarian, let alone revolutionary, platform for our self-expression and development, that being able to shout into the digital torrent is adequate for democracy.

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?

I was shocked when I tried to articulate this to someone who had posted the film and asked them to remove it for a few months, and I actually told them that after that they could put it back up and they were just completely unwilling to compromise - you'd think I was Rupert Murdoch or something.

Advertisers are happy to see the stuff they've branded out there for free, they don't care about scarcity, they want any message they're invested in to be shared and to be abundant and to be passed along.