Good reading, but you guys missed a key point, which I just stumbled upon: Null. It DOES exist in Blitz!
Null Parameters None Description Designates a Null Type object. Useful for making a Type variable point to nothing or checking if a Type object exists. Also, useful for checking that there are still objects left on the end of a Type list using the After command. Can used for testing and setting. See also: Type, After. Example ; Null example Type Alien Field x,y End Type a.Alien = New Alien If a <> Null Then Print "Alien exists!" Delete a if a = Null Then Print "Alien gone!"