Yeah, a few words are being adopted by popular culture with no regard to their actual meaning, and epic is one of them. It has been used a lot in the last couple of years with the meaning of "exceptionally good". I saw someone asking for suggestions for the most epic twitter post of all time, apparently oblivious to the fact that 140 characters are insufficient to describe grandiose tales of long journeys and heroism, which is the traditional meaning of epic. As I said, I blame America's disdain for etymology, and the rest of the world then adopts the new meanings and new words. Some examples just make me laugh, like the habit of adding suffixes to make bigger words that they think sound clever, such as "aggressiveness", which is a clumsy and poor substitute for the well-established "aggression". However, the recent repurposing of "literally" as an exaggeration for emphasis infuriates me because using it this way is the opposite of its actual meaning (ie. "literally" now means "not literally") and invalidates it as a word, and there isn't really an alternative way of concisely saying that the words must be taken to mean exactly what they say.