Excellent inspiration for how important it is to get out there and experience alternate ways of thinking. Networking on social media can be a problem when discussing serendipity though depending on the network you use. Facebook for example is great at killing serendipity because it filters your information based on what you've previously like. So, Facebook is constantly refining your feed to close you into a bubble more and more.

Precisely the reason I love Twitter so much. There's no filter except for my choices, and I choose to follow anybody who I deem a real person that provides real Tweets. I think Google+ is also a great example of a network that provides serendipity but I'm not sure if it does any filtering (doesn't appear so to me!).

Anyway, I'm a huge fan of serendipity and I think the title explains it all, only you can engineer your own by venturing out of your norm and not allowing others to engineer lack of serendipity for you :-)