Mark zuckerberg to introduce cryptocurrency to facebook

There has been a shocking news all over the internet that this genius called mark zuckerberg is studying cryptocurrency in quest to decentralize facebook.
Then all this questions came to my mind...

1. What was his plan concerning facebook?
2. If likely he comes up with his own coin, what will he call it ?
3. Or does he want to use bitcoin as his decentralize payment coin?
4. Does it mean that before you can use facebook, you have to pay?

All this are question on my mind that needs answer.
Please it all over to you my fellow steemians