Say what you will about people watching other people play video games live. The numbers don't lie.

1.7 million people broadcast game streams every month on the largest streaming-game service, Amazon-owned Twitch, according to data from 2015 .

data from 2015 An average of 100 million people tun e in to those streams. For comparison, there are just over 40 million PlayStation 4 consoles in the wild.

e in to those streams. For comparison, there are just over 40 million PlayStation 4 consoles in the wild. Amazon thought Twitch was impressive enough that it bought the company for just shy of $1 billion back in 2014 .

Twitch is available on every game console to either watch games played or to broadcast your own. It's available on phones, tablets, computers, and set-top boxes like the Apple TV. It's the standard broadcast network of eSports tournaments the world over. As an added bonus, it's got the might of Amazon behind it. Who could challenge that?

Who indeed:

Robert Galbraith/Reuters

Nearly one-quarter of the earth's human population, 1.6 billion people, use Facebook. When the company makes even a small change to its service — The Social Network — it can be tremendously impactful.

In the case of Facebook Live, a tool that enables any Facebook user to instantly live stream their life from their phone, Facebook made a huge change. Suddenly, there are notifications from friends, publications, celebrities, and anyone else you're connected to on Facebook (there's a way to turn that off). They're somewhere! Doing something! Right now! And you can watch it — live!

Everybody is live! WHO WILL YOU CHOOSE?! Twitter/Colin Jones

In June, Facebook announced a partnership with gaming powerhouse Blizzard Entertainment: All of Blizzard's games, from "World of Warcraft" to "Diablo 3" to "Hearthstone" to "Overwatch," are instantly streamable — live! — on Facebook Live.

You push a button, there's a short countdown (3 ... 2 ... 1), and you're off to the races, livestreaming your game directly to Facebook in high-resolution.

The service is available starting right now, Blizzard announced on Friday. The service was unveiled with this video on — where else? — Blizzard's Facebook page:

It's easy to imagine just such a service on everything from your iPhone to that PlayStation 4 in the living room.

Facebook agrees.

"Imagine every game that people are playing, regardless of platform, they have the opportunity to do one-button 'Go Live' to Facebook. That would be pretty awesome!" Facebook's director of games partnerships, Leo Olebe, told Business Insider in an interview earlier this year.

So we pushed. Is Facebook making that concept a reality?

"Yes, yes, it is," he told us. "Gamers are everywhere. They're on every different device. They're playing any time, and we want to be where gamers are."

Creating the future of game streaming on Facebook

Olebe is responsible for the partnership with Blizzard Entertainment, and says he and his team are "talking to developers just about every day."

What Facebook's doing with Blizzard is the first truly easy solution for streaming games directly to the largest social network in the world, and it's a relatively quick rollout when viewed in the context of Facebook's larger Live push.

Facebook Live initially went public last summer, but only for "Public Figures" (like Beyoncé and Mark Zuckerberg). Private citizens — normal people like you and me and Chewbacca Mom — only got access in January 2016. Even then, it was still limited to "Point your phone at something and make a video. Live!"

But then Facebook did something very smart: It released what are called "APIs," which are a means for more professional production to be broadcast on Facebook. Suddenly you've got publications like, say, Business Insider, figuring out how to stream video games directly to Facebook.

Our setup requires a game-capture box, an expensive piece of software, several cameras, mics, and lights, dozens of wires and adapters, an audio-mixing board, and someone with experience operating a live internet broadcast (preferably).

If you're a normal person who doesn't work at a large publication, it's a big hassle. That hassle is something Olebe wants Facebook to solve.

"If we can make it easier — democratize, if you will — the ability for people to go live on Facebook, that's a great thing," he said. "We're working on tools and products and services internally to really enhance Live, and we're working on those things with [game] developers and publishers from around the world."

On the PlayStation 4, there's a button on the front of the controller that says "Share." When you push it, you're whisked to a screen that asks you where you'd like to share your games. Perhaps you'd like to upload a clip to Facebook? Perhaps you'd like to livestream a game directly to Twitch or YouTube?

There is no such option for Facebook Live. Nor does such an option exist with iPhone games or PC games. And that's exactly what Facebook will need to solve if it wants to court the hundreds of millions of people watching and streaming games.

Olebe knows that and sympathizes with the current situation. He insists on the importance of getting the product out, getting feedback, iterating based on that feedback, and growing. Here's the long-term view, from Olebe himself:

"It's absolutely in our interest, and yes, the Blizzard partnership is a step down this road, to make it as easy as possible. If you're going live from your mobile phone, you go on your Facebook page and you hit "Go Live." And it's like 3, 2, 1 and you're now live. There is a future where you have that similar type of experience but for gameplay. And so in this case, the implementation isn't live yet, but they're literally inputting a "Go Live" button into Battle.net and into Blizzard games. So you'll be playing "Overwatch," and you'll be able to just hit the "Go Live" button and it'll go live to your Facebook feed because you've used Facebook Login — you've connected your Facebook account — and now you hit the "Go Live" button and — boom! — your gameplay is being streamed to Facebook."

With 1.6 billion users, the best video player on the internet, and a partnership with one of the world's most successful game studios, Facebook is sending a direct message to Amazon's Twitch: Watch out.

Olebe repeatedly reminded me during the interview that Facebook already commands an audience of "650 million people," who are "either playing games on Facebook or with Facebook." The number includes people playing Facebook-based games, as well as the millions of people connecting to Facebook using the Login service, which lets you use your Facebook account to sign into services and games ranging from the world's most popular game console (the PlayStation 4) to one of the world's most popular games ("League of Legends").

Can Facebook turn all of those 650 million people into livestream video-game watchers? Perhaps, but even if Facebook can't, a fraction of that number could easily best the existing heavy: Twitch. Olebe wouldn't tell us when its "Go Live" functionality will arrive in Blizzard's games (let alone on something like the PlayStation 4), but at the rate Facebook is already moving on live video, expect live video games to invade your social feed more and more as the year goes on.

You might be watching or, better yet, streaming your own games before you know it. That's the whole point!

As Olebe told us, "The idea that Facebook can be a place where people share the games that they love is, in my mind, a pretty compelling thing."