Did you know there are tens of thousands of versions of Facebook running at any one time

Which version of Facebook are you using? Did you know there are tens of thousands of versions of Facebook running at any one time – and you’re using just one of them?
In an interview this week with Y Combinator, Mark Zuckerberg explains that in today’s fast-changing world, “The key is building a company that is focused at learning as fast as possible.”
“Companies are learning organisms. You can make decisions so you can either make it learn faster or you learn slower.”
This is how Facebook ma...