The case for slow reading
Speed-reading culture treats books as a backlog to clear. The measure of a good reading habit becomes a number: books this year, pages this week. That metric rewards exactly the wrong behavior for anything you actually want to keep.
Two different jobs¶
Skimming and slow reading aren't the same activity at different speeds; they're different jobs. Skimming is for deciding whether something deserves your attention at all, or for extracting one fact you already know you need. Slow reading is for letting an argument rearrange how you think, which only happens if you give it room to disagree with you, stall, and get picked back up a day later with half of it still unresolved.
Treating the second job like the first is why so much "read" material leaves no trace. You cleared the backlog and kept nothing.
What slow actually buys you¶
The payoff of reading slowly isn't comprehension in the narrow sense, it's retention of the shape of an argument rather than its bullet points. A book read in one sitting compresses to a single impression. A book read over two weeks, with gaps where you argue with it internally, ends up stored as a structure you can reach for later in pieces, which is the only form that is actually useful when a related problem shows up.
Slow reading isn't a virtue in itself. It's a mechanism for converting attention into something durable, and it only pays off on material dense enough to reward the extra time.