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.
â¢ While allusion is used to refer to something or someone else, illusion is used to refer to a false impression. â¢ Specifically, allusion means to refer to something similar or to something or somebody in the past. â¢ Illusion is a word that refers to a deception or a false impression. Images Courtesy: Motion illusion in star arrangement by Fiestoforo (CC BY 3.0)