In the beginning of the web era we never had best Search engines . No one thought of that too all are search for books, no one interested to read other books , which is not their subject or not in interested but they need some information from it .
Very hard to get information that time , but now your voice converted to search keywords, your eyeballs movements scenes what you’re seeing is made search elements , it’s about 10 years of technology growth in the world of web .
Next gen technology makes much perfect utilization of keywords, crawlers are made advanced , keywords are not only the words, its more of that, voice, images, objects, location, many more..
Keywords rule forever…