If I was to just consult a “popular” or other summarized source, the writers decide what details go in and what gets cut out. But if you do the summarizing from something “heavier” (like a textbook, peer-reviewed journal, etc.), you get to summarize whatever you want, and get your own product.
Of course, both the heavy stuff (which needs to be summarized by your own effort for full understanding) and “light” or “popular” sources can work as a team, as all good research includes. Using a cooking analogy (since I love to cook), it’s kind of like mixing natural and processed foods. Natural foods (which we’ll compare to the “heavy” reading) can be mixed with those “processed” foods that have been around the block, just like a summary. Processing includes all the added and modified ingredients and the, yes, processes used together. Combining them can turn into a meal. Summarizing (and its typical complement, paraphrasing, or changing the wording) is a process on writing. Light and heavy materials can be used together in personal understanding of a topic.
And don’t get trapped into thinking that something is simply “over your head” and thus dismissing it as a source. Reading is an exercise of the mind, so if it isn’t over your head, it’s probably too easy. As you perform these mental calisthenics, you improve your capacity of intake and take it to new heights. (This very logic is from the book called “How to Read a Book,” by Mortimer J. Adler). And technical terms and concepts, in this information age, thanks to Google, are just a click away from their description.
Probably the biggest barrier is math, found often in science articles. But this phobia is merely caused by first glances, if you learn the appropriate level of math (and the knowledge needed is usually theoretical and rarely, if ever, computational), an equation will feel more like a “puzzle,” just like crosswords, word searches, jigsaw, and Sudoku. The pain (or at least fear) thereof can potentially turn into a pleasure, hopefully.
I would still advise people who use this strategy, nifty as it is, not to publish it to mass audiences (except if they are truly expert). This may compromise accuracy, since after all, you are most likely not a professional in that field. You can share it orally or otherwise personally as much as you like, though.
So, ready to climb Mt. Reader?