“There is science, there is art and there is Jungian symbolism. . . . For all its challenges, Murmur is also beautiful [in its] willingness to embrace opacity, its portrayal of the labyrinthine paths along which thought proceeds, and its exhilarating ambition to test Alec’s belief that ‘[a] mind can’t prove or step outside itself’ by inviting us to step out from ours, and into his.”