Change is the only constant in this world- nothing stays the same. We have evolved from dinosaurs to apes to primitive Neanderthals to Homo sapiens sapiens. From living in caves, we now live in brick-and-cement houses. From the time we communicated through letters and telegrams, to when Graham Bell invented the telephone, to the modern smartphones which have messaging apps, where connecting with another human being is just a text away. Image Credit: Pinterest From the time we