A computer can decode the stuff of dreams. By comparing brain activity during sleep with activity patterns collected while study participants looked at certain objects, a computer learned to identify some contents of people’s unconscious reveries. [1]

“It’s striking work” says cognitive psychologist Frank Tong of Vanderbilt University in Nashville, who was not involved in the research. “It’s a demonstration that brain activity during dreaming is very similar to activity during wakefulness”.

That could be interpreted differently. It could mean that this “is a demonstration that brain activity during wakefulness is very similar to activity during dreaming”…