Search tells the truth about its results

Compartment boundaries can trim a search's candidates before ranking.

The vault casts a wide net before filtering, bounds what that net may

cost, and — when fewer results survive than were asked for — says so,

rather than presenting a truncated list as complete.

Casting a wide net is not the same as keeping everything in it. A

search over meaning alone will always return its nearest neighbours,

however far away they are, so the vault holds them to a standard of

relevance and would rather say it does not know than pad an answer

with its nearest misses.