An office installed a display showing which meeting rooms were currently empty. Employees no longer had to walk between floors merely to look for a room. Yet the display did not include reservations beginning later in the day. A room marked empty might therefore be unsuitable for a long meeting. The manager described the system as reducing the cost of searching, not guaranteeing that every room shown would meet every need. An employee proposed adding reservation times, while another wanted to remove all rooms with any later booking. The first change would give users more relevant information; the second would prevent even short meetings in rooms available for several hours. The distinction matters because a limitation does not make a tool worthless, and an improvement does not require eliminating every possible choice. The appropriate claim about a tool must preserve both what it enables and the conditions under which that help is useful.