lateEdgeTicks
constlateEdgeTicks:17=17
Ticks after its own tick that an edge, a tick’s jump, may reach the
room and still run, once, on the room’s next tick, never on a tick it
has stepped; a later one is dropped with its tick. A little past the
quarter second the room repeats her last input for while her input is
late, since a page that sends each tick’s input leads the room by two
ticks less: a 300 ms spike every 4 s brings an edge up to 8 ticks late,
and a 400 ms stall up to 16. A predicted command’s lateTicks takes
the same 17 where it names none, defaultLateTicks.