Can you really do two things at once or is it an illusion? There have been many contradictory opinions on this question, even from sources that are usually labelled as "trustworthy" and "reliable". A Google search does not give the sort of answers I am looking for. Does anybody have their own opinions if multitasking is actually possible? I am not looking for a "yes" or "no" answer but rather a justification on the the science behind this. Referring to the brain would be a good start.