percentChangePerSecond == [NaN] or ![0,\inf]. A field set to Not-a-Number or a real number bettween zero and one, inclusive.

• When the period is in discrete time the percentChangePerSecond field is not applicable, set this field to NaN.
• When the period is in continuous time this determines the rate at which players can change their strategy. For example, when this field is set to percentChangePerSecond =".1" the players can change their strategy via the selector by a maximum of 10% per second. When percentChangePerSecond="NaN" changes in strategy are reflected instantaneously on screen and with other players.