In this week's episode, Inner Child, Walter straps his neuro-transmitter onto the Child, and picks up an odd, unintelligible voice. Lots of fans are speculating that the Child thinks/speaks backwards, since he writes upside-down...
I've recorded the transmission and reversed the audio. Take a listen for yourself:
Still sounds unintelligable to me! And anyway, I don't think the Child writes backwards, per se. It looks to me like his spacial reasoning is way beyond that of a normal human, and he just writes so that Olivia can read his handwriting from her perspective across from him.
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