Data science is all about getting the best out of data. Data science is considered to be the right way to go when it comes to extracting insights from raw data.
Social media allows you to drive content snappily and fluently to large number of implicit guests at little to no cost. Internet has made power of word of mouth.
There is no doubt that H2-H6 heading tags are influential, but they may not be the most effective SEO factor when it comes to ranking in SERPs ( Search Engine Results Page).