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.
There is no such thing as an illusion to literature, rather, an allusion is when someone says something like So Eden sank to grief (Robert Frost's Nothing Gold Can Stay). It â¦ is a reference to something outside of the situation, in this case literature.