EA co-founder @bingfish says Fortnite solved a problem casinos figured out decades ago by giving people a second currency that lets them lose and still feel like they won: "I'm kinda blown away that in Fortnite everybody feels like a winner even though 100 players, only one wins, but everybody gets career score." "I met a designer from a Las Vegas casino and he said, 'You know what our secret is? The second currency.' I go, 'There's only one currency, it's US dollars.' He goes, 'No, there's…