See the patterns that one capture cannot show.

Explore annual title shares, reviewed discussion themes, and grouped community measures without turning correlation, activity, or attention into a quality score.

Loading reviewed grouped evidence

Preparing reviewed aggregate evidence

How did tracked subjects move through Hacker News titles?

32 topics

Choose a reviewed topic to redraw the annual series. Shares normalize within each year; the current year is partial, and title matching is an approximation rather than a semantic census.

Cohort: annual Hacker News story titlesUnit: share of titlesLatest year: partialLoading method

Selected topic annual values
Year	Title share	Coverage state

Every tracked topic and summary value

All tracked topics with recent share, baseline, momentum, peak, and linked forward-capture stories
Topic	Category	Recent share	Baseline	Momentum	Recorded peak	Captured stories

Which recurring concerns appear in high-scoring discussions?

Loading reviewed-label coverage.

Every reviewed theme with exact mapped mentions and share
Reviewed theme	Mapped mentions	Share of matched mentions

Cohort: highest-scoring analyzed discussionsUnit: matched label mentionsUnmatched labels: withheldLoading method

How does retained submission activity differ across cohorts?

These groups describe retained activity, not people’s value, intent, expertise, or causal effect. Public output contains cohorts and grouped measures only; handles, individual rankings, identity inference, and comment text are excluded.

Every grouped submission-activity cohort and exact retained values
Activity cohort	Authors	Stories	Average score	Average comments	Breakout share

Loading community method.

Different submission surfaces invite different thread shapes.

Every retained discussion surface with exact grouped engagement measures
Surface	Stories	Average comments	Comments / 100 points	Silent share	Deep-thread share

Loading discussion-surface method.