Hmmm…

Distant quasar illuminates a filament of the cosmic web

Modern cosmological models suggest that there are “filaments” of matter and dark matter stretching between distant galaxies and galactic clusters. Computer simulations (such as one illustrated at the link) make it look like nothing so much as neurons, making the universe into something that looks like a vast brain. It is kind of an appealing notion on some levels, but I’m uncertain how a 2-million-lightyear-long filament of hydrogen and dark matter would transmit something resembling a thought.

Still… dark matter neurons. Sci-fi fodder if ever there was.