In one implementation, a method includes: instantiating a first objective-effectuator (OE) associated with first attributes and a second OE associated with second attributes into a synthesized reality (SR) setting, wherein the first OE is encapsulated within the second OE; providing a first objective to the first OE based on the first and second attributes; providing a second objective to the second OE based on the second attributes, wherein the first and second objectives are associated with a time period between a first and second temporal points; generating a first set of actions for the first OE based on the first objective and a second set of actions for the second OE based on the second objective; and rendering for display the SR setting for the time period including the first set of actions performed by the first OE and the second set of actions performed by the second OE.