What exactly is Big Data? This video defines and explains Big Data as well as Hadoop and MapReduce in simple language.
Rating Newest Oldest. Best Answer: Time is an illusion in that it's not a real, *natural* feature of the universe. Time is not absolute, meaning there's no Cosmic Master Clock that ticks off the correct time for the entire universe.
An illusion is a distortion of perception. The brain arranges, sorts, and organises data from the senses. Normally the system works well. Sometimes it does not, and we see illusions. In general, they are shared by most people in the same situation.