“During my first few months of Facebooking, I discovered that my page had fostered a collective nostalgia for specific cultural icons. These started, unsurprisingly, within the realm of science fiction and fantasy. They commonly included a pointy-eared Vulcan from a certain groundbreaking 1960s television show.Just as often, though, I found myself sharing images of a diminutive, ancient, green and disarmingly wise Jedi Master who speaks in flip-side down English. Or, if feeling more sinister, I’d post pictures of his black-cloaked, dark-sided, heavy-breathing nemesis. As an aside, I initially received from Star Trek fans considerable “push-back,” or at least many raised Spock brows, when I began sharing images of Yoda and Darth Vader. To the purists, this bordered on sacrilege.. But as I like to remind fans, I was the only actor to work within both franchises, having also voiced the part of Lok Durd from the animated show Star Wars: The Clone Wars.It was the virality of these early posts, shared by thousands of fans without any prodding from me, that got me thinking. Why do we love Spock, Yoda and Darth Vader so much? And what is it about characters like these that causes fans to click “like” and “share” so readily?One thing was clear: Cultural icons help people define who they are today because they shaped who they were as children. We all “like” Yoda because we all loved The Empire Strikes Back, probably watched it many times, and can recite our favorite lines. Indeed, we all can quote Yoda, and we all have tried out our best impression of him.When someone posts a meme of Yoda, many immediately share it, not just because they think it is funny (though it usually is — it’s hard to go wrong with the Master), but because it says something about the sharer. It’s shorthand for saying, “This little guy made a huge impact on me, not sure what it is, but for certain a huge impact. Did it make one on you, too? I’m clicking ‘share’ to affirm something you may not know about me. I ‘like’ Yoda.” And isn’t that what sharing on Facebook is all about? It’s not simply that the sharer wants you to snortle or “LOL” as it were. That’s part of it, but not the core. At its core is a statement about one’s belief system, one that includes the wisdom of Yoda.Other eminently shareable icons included beloved Tolkien characters, particularly Gandalf (as played by the inimitable Sir Ian McKellan). Gandalf, like Yoda, is somehow always above reproach and unfailingly epic.Like Yoda, Gandalf has his darker counterpart. Gollum is a fan favorite because he is a fallen figure who could reform with the right guidance. It doesn’t hurt that his every meme is invariably read in his distinctive, blood-curdling rasp. Then there’s also Batman, who seems to have survived both Adam West and Christian Bale, but whose questionable relationship to the Boy Wonder left plenty of room for hilarious homoerotic undertones. But seriously, there is something about the brooding, misunderstood and “chaotic-good” nature of this superhero that touches all of our hearts.”