Daryl stepped on gravel in his backyard and heard a non-distinct voice and footsteps following him; then, he heard someone else eating too during breakfast.
"Doctor Fredrick, after brain surgery, I hear a ghost following me ... Am I going crazy?"
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Dr. Fredrick spoke to the investor’s representative—"I''m afraid I''ll need to remove the implant. It''s created a carbon copy of Daryl’s mind in his exocortex."
"Doctor, human trials must succeed. Your investor’s poured millions into this."
"What else can I do?" asked Dr. Fredrick.
"That''s obvious, Doctor—neutralize the offending grey matter. Nobody’s going to notice the difference."