Greg Weisman: We're adapting Teen Titans, we're adapting Young Justice, we're adapting the whole DC Universe. We're set on Earth 16 in the DC multiverse and we're sort of making ours a young universe. Superman's only been around 10 years, the Justice League's only been around three or four years. Robin's been around four years. The others have been doing it for even less time. Speedy for three, Kid Flash for two, Miss Martian hasn't done it at all yet when our series starts. So we're keeping it young.