As you sit across from Tyler and Cameron Winklevoss, it is easy to lose track of whom exactly you’re talking to. Tall, blue-eyed and each built as broad-shouldered as a fridge, the twins are identical right down to their entrees: a pair of lobster rolls, with potato chips. Each has an espresso; neither eats the biscotti it comes with. And while the restaurant around them is spinning with chatter on this February night, the twins are each laser focused on getting their message across.