A novelty which does not inspire.
1. e2e4  1... b8c6 My favorite childhood opening! 2. g1f3 The simplest reply. It  is an invitation for the "normal play" after 2....e5. 2... d7d5 which is rejected. Carlsen goes for a super-risky Scandinavian instead. 3. e4d5  3... d8d5  4. b1c3  4... d5a5  5. f1b5  5... c8d7  6. e1g1  6... a7a6  7. b5a4 The bishop should be kept for the time being. 7... g8f6  8. d2d3 