Lena Dunham this, Lena Dunham that. Blah, blah, blah. She, in her mid-20s, created, wrote, directed, produced and starred in a half-hour comedy series about 20-something adulthood, femininity and sexuality. She sparked adulation, conversation, arguments and green-eyed envy of her talent. "Girls" was a series that couldn't be ignored at least, by pop-culture cognoscenti. It will surely be welcomed back in January with even more attention, if possible (with always the threat of a backlash), as viewers resume arguing: Does the series measure up to all the hype? Nuff said. Up to now, indisputably, "Girls" has been monumental. And a gas.