As an 18 year old, I started watching this last year during my final year of high school, and all I can say is that I was amazed by some the complex concepts that majority of the episodes have explored and challenged. The only reason I wouldn't give the 5th star is due to some of the episodes being quite lacking in the depth and meaning that they have. However, as a recommendation, I would encourage any 16, 17 or 18 year old to watch this, because it can truly broadened your mind and get you questioning matters that are currently happening in society, and could very well happen within our lifetimes, not to mention the inspiration you can take from some episodes in particular and incorporate those concepts into subjects like art and literature. Overall, it's an incredible show if you give it the chance and stick with it!