Object is the root class of every object inside Gravity. Through the Object class, objects inherit a basic interface to the runtime system and the ability to behave as Gravity objects.
All the built-in Gravity type are built from the base Object class and when you declare a new Class in Gravity without a super class then it is set by default to Object.
The new Introspection feature is built on top of the base Object class (so any other Class automatically inherits that feature).
Gravity has some built-in types that extend and overrides methods and classes from the base Object class:
Special internal methods
Some methods has a very special meaning, for example by implementing the exec method your class is able to be executable via the object() notation. By implementing the loadat/storeat method your object can be accessed via the subscript shortcut object[i]. The load/store method is internally used to implement the dot notation (object.property).
The Class class overrides the exec method in order to implement Object instantiation and initialization:
var foo = Foo() // means execute the exec method of the Foo class
All these special methods are implemented by the base Object class in order to provide most the basic functionalities that an user expects for a modern object oriented programming language.