Comment by cubefox

I am both consciousness and have a brain, and alterations in the brain (chemical or physical) correlate with changes in consciousness. Which suggests that our "bunch of electrical pulses" are at least sufficient for consciousness. Plants may be also be conscious, but that would require the existence of an additional, very different, cause of consciousness than in humans. The theory "X is only explained by Y" is simpler than "X is explained by Y, and X is explained by Z". Ockham's razor suggests it's more likely for there to be fewer causes than many.