If you thought Season 1 of Netflix's The OA was a mind-bending banger, brace yourselves. Series creators Brit Marling and Zal Batmanglij double down on the insanity and invention of their expansive story in Season 2, and the result is a show that's bigger, bolder, and ultimately better. The OA's first season was a surprise sensation from the filmmakers behind Sound of My Voice and The East, and it sparked quite the debate over its final episode -- a piece of cinema-meets-performance art that was at once gorgeous, emotional, silly, strange and well, a bit …