For me that's not true. The biggest "energy drain" is when I rush reading something and get fuzzy about what is being said. Understanding the text becomes harder and harder and a lot of will power is required to keep reading the text that no longer makes sense. Re-reading a paragraph 2-3 times or stopping to think more about what was written helps. So the fewer times I stop the more my brain will get "fried".
Also: there seems to be a "new school -vs- old school" schism of sorts between (Tiago Forte, PARA, and the Roam + Notion scene) vs (Cal Newport and traditional GTD). I don't have the link handy but this week I saw something from the former calling out the latter. Of course this article was 2008 so it's not Cal himself responding, but I'm curious if others see this pattern too.
Its an interesting note taking strategy in general; better to learn a subset very well then expand the subset over time.
The idea in the article of "highlight without a highlighter" is interesting. You can see how some people need paper copies specifically because of their learning style, whereas people who don't highlight do just fine with tablets and phone emails. AFAIK interviewing processes do not find employees with matching culture fit, which is too bad as it would probably help quite a bit (imagine being the only guy on the team who needs paper copies of everything, or the only guy who can't use search function on his phone because everyone else is using paper)
There's an approach to learning Morse code where you hear single letters sent at about 40WPM, with a long pause between letters. The idea is to learn each letter as a sound bite of its own, not dots and dashes. As recognition improves, the pauses between letters get shorter, until you're listening to real 40WPM code.
I thought from the original article that this was going to be a scheme for taking notes in Morse code, maybe with a key strapped to your thigh.
And then install a morse keyboard on your phone.
Some baseline features to expect are being able to slide between keys, auto-repeat, and iambic keying. None of the alternatives had all of those last I checked.
You do this first when encountering a subject, then later through active recall, repetition, and practice. It's very difficult to do that with bare bones notes and underlined keywords/phrases. It skips over the necessary mental processes involved in moving information from short to long-term memory, and for understanding. Highlighting keywords/phrases doesn't aid in retention or understanding, it avoids it.
I think highlighting is an anqiquated note taking method. I often feel like I end up highlighting not enough, or too much.