Warning: this article contains several mistakes and they could even lead to data loss! Let’s go through them one by one.

A few important points missed in the video:

Works on iOS too!

This very likely has to do with App Nap, introduced in OS X Mavericks. If the app window is not in the foreground, the system pauses it. https://developer.apple.com/library/content/documentation/Performance/Conceptual/power_efficiency_guidelines_osx/AppNap.html

Yes, facial recognition has been available since December: [blog.facebook.com]

Where's the Firefox article?

VOTE: DestroyTwitter.

And all of a sudden, everyone forgot about Windows Vista Beta 2, which also was released for free for anyone, back in june of 2006. They did the same with the Release Candidate 1 and 2.