If nothing else, at least I've discovered what it is we put our speakers through: sweaty palms, sleepless nights, a wholly unnatural fear of clocks. I mean, it's quite brutal. And I'm also a little nervous about this.

There are nine billion humans coming our way. Now, the most optimistic dreams can get dented by the prospect of people plundering the planet. But recently, I've become intrigued by a different way of thinking of large human crowds, because there are circumstances where they can do something really cool. It's a phenomenon that I think any organization or individual can tap into. It certainly impacted the way we think about TED's future, and perhaps the world's future overall. So, let's explore.

The story starts with just a single person, a child, behaving a little strangely. This kid is known online as Lil Demon. He's doing tricks here, dance tricks, that probably no six-year-old in history ever managed before. How did he learn them? And what drove him to spend the hundreds of hours of practice this must have taken? Here's a clue. (Video) Lil Demon: ♫ Step your game up. Oh. Oh. ♫ ♫ Step your game up. Oh. Oh. ♫ Chris Anderson: So, that was sent to me by this man, a filmmaker, Jonathan Chu, who told me that was the moment he realized the Internet was causing dance to evolve. This is what he said at TED in February. In essence, dancers were challenging each other online to get better; incredible new dance skills were being invented; even the six-year-olds were joining in. It felt like a revolution. And so Jon had a brilliant idea: He went out to recruit the best of the best dancers off of YouTube to create this dance troupe — The League of Extraordinary Dancers, the LXD. I mean, these kids were web-taught, but they were so good that they got to play at the Oscars this year. And at TED here in February, their passion and brilliance just took our breath away. So, this story of the evolution of dance seems strangely familiar. You know, a while after TEDTalks started taking off, we noticed that speakers were starting to spend a lot more time in preparation. It was resulting in incredible new talks like these two. ... Months of preparation crammed into 18 minutes, raising the bar cruelly for the next generation of speakers, with the effects that we've seen this week. It's not as if J.J. and Jill actually ended their talks saying, "Step your game up," but they might as well have. So, in both of these cases, you've got these cycles of improvement, apparently driven by people watching web video. What is going on here? Well, I think it's the latest iteration of a phenomenon we can call "crowd-accelerated innovation." And there are just three things you need for this thing to kick into gear. You can think of them as three dials on a giant wheel. You turn up the dials, the wheel starts to turn. And the firs thing you need is ... a crowd, a group of people who share a common interest. The bigger the crowd, the more potential innovators there are. That's important, but actually most people in the crowd occupy these other roles. They're creating the ecosystem from which innovation emerges. The second thing you need is light. You need clear, open visibility of what the best people in that crowd are capable of, because that is how you will learn how you will be empowered to participate. And third, you need desire. You know, innovation's hard work. It's based on hundreds of hours of research, of practice. Absent desire, not going to happen. Now, here's an example — pre-Internet — of this machine in action.