Once I looked up the word "innovation" it made sense. I understood "invention" and "improvement", but "innovation" always sounded like marketing-speak to me, so

Once I looked up the word "innovation" it made sense. I understood "invention" and "improvement", but "innovation" always sounded like marketing-speak to me, so I turned off my brain on that one. The page at https://en.wikipedia.org/wiki/Innovation https://en.wikipedia.org/wiki/Innovation compares all three.