It's not impossible. But the article does address this point: > One explanation, that B.T. was “malingering,” or lying about her disability, was disproved by

It's not impossible. But the article does address this point: > One explanation, that B.T. was “malingering,” or lying about her disability, was disproved by an EEG test. When B.T. was in her two blind states, her brain showed none of the electrical responses to visual stimuli that sighted people would display — even though B.T.’s eyes were open and she was looking right at them.