I watched this video yesterday about how this fellow creates online courses. He goes into groups on Facebook that are on the topic he is interested in. While there notices the problems the members of the group is struggling with.
Then he will look at content that solves these problems, (blogs, videos) and from the best ones, creates his own course, extracting and rewriting or making new video content, packaging and selling the courses.
So he may watch 5 different videos on the topic of "creating video style content with a smartphone" and from this create the new course "The 5 Best Ways to Make Compelling Videos With Just a Smartphone"
Would this be considered synthesizing?
He is doing this on all sorts of topics, without being an expert, per se, on any of them....