Every inexperienced web marketer and SEO was panicking about duplicate content, until Google published a video on their official channel “How does Google handle duplicate content?”.
Realistically large number of high ranked pages consist of duplicate content for instance pages related to physics, maths, biology, law, etc... The real problem with duplicate content comes from issues related to “self-duplicate content” due to wrong re-directions, canonicals, badly coded CMS, database issues, duplicate meta data, etc... These usually lead to some sort of penalty and drop in rankings.
High Quality Content
Being realistic, nobody can give you a detailed description of “what high quality content is?”; and humans are intelligent. Last time, I've checked AI wasn't developed, yet so search engines relay on very basic logic, stats and mathematics.
Relevancy, Bounce Rate, Social Signals, Backlinks
These are the 4 pillars of quality content, in terms of SEO:
relevancy = proper navigation, cross linking, quality backlinks
high bounce rate = poor content, not catchy
poor social media presence = not-trendy topic, lack of SMM
poor link profile = lack of proper SEO
Ideal strategy for building high quality content is to create a “category tree” starting with generic topic title and get deeper into...