Figure 25.4 Deep research seen as compression. One question is split into sub-questions that fan out
into parallel searches; each search digests a tall stack of sources down into a single thin note,
and the notes converge to be synthesized into one report. Every claim in that report carries a
citation back to the source it came from (in accent)—the fan-out buys breadth, but the
traceable citations are what make the result something you can check.
