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Since the mid-1660s when a young Isaac Newton first separated the colors of the visible spectrum, modern scientists have stopped recognizing indigo as a color. But that didn’t stop a young Oliver Sacks from searching for it.
During the live question and answer session, Oliver Sacks was asked, “What if we could stop all hallucinations?”
For centuries, hallucinations have been associated with mental illness. In his latest book, neurologist Oliver Sacks sheds light on this previously taboo and misrepresented subject.
In a condition called synesthesia, the signals between the senses are often crossed. Are these experiences hallucinations? Or are they just as real as the rest of the world around them?