1. A method, comprising: performing, by a computer: accessing data pertaining to a plurality of objects displayed in a space; measuring an age related characteristic for each of the plurality of objects based on the data, wherein said measuring comprises: determining a number of accesses to each object, assigning a point value to each object based on the number of accesses to the object and times of access, and determining the age related characteristic based on the point value; applying a variable visual effect relative to each other object to the display of each of one or more of the plurality of objects, wherein the respective visual effect applied to the display of each object varies for that object dependent on the age related characteristic of the respective object; and wherein said accessing, said measuring and said applying are automatically repeated over time to visually indicate actual changes over time in the age related characteristics for each of the one or more of the plurality of objects, and wherein the actual changes over time are visually indicated by the variable visual effect applied to the display of each object.