Joseph Gordon-Levitt has explained why he attended a couple of private conferences hosted by controversial billionaire Peter Thiel , despite having never met the PayPal co-founder. As reported by The Hollywood Reporter , the 500 Days of Summer star was among a list of Hollywood entertainers who have attended some of Thiel’s secret meetings for the Dialog group, which was brought to light in a leaked registration list . With Thiel publicly exhibiting conservative views and once hesitating on whether the human race should be wiped out among advancements in artificial intelligence , some of Gordon-Levitt’s fans were concerned that he formed a political alliance with Thiel, especially since the actor has spent the past few years advocating for ethical AI practices and fair compensation for creators. On Thursday (June 19), Gordon-Levitt took to Instagram to clarify that he doesn’t know Thiel and understands why the public is "suspicious" about their affiliation. "I have been to two Dialog conferences.…