Too Long; Didn't Read
During the early <a href="https://en.wikipedia.org/wiki/Growth_hacking">2010s</a>, growth hacking began to spread its wings. At that time, the number of startups was on the rise and growth hacking was their spell of success. Unlike traditional marketing companies, growth hacking agencies don’t believe in guessing game. The writer of <em>Growth Hacker Marketing, </em><a href="https://en.wikipedia.org/wiki/Ryan_Holiday">Ryan Holiday</a> puts it as: