An un-liftable object or an object of infinite mass is implied by the question, and both are incoherent by definition of object.

Think about this: what are the minimum attributes of an object? What makes an object an object? 1) Volume. 2) Mass.

For any given mass, there is a definable force that can lift that mass.

What am I missing?

__________________
R. Anthony Coletti
Midway Presbyterian Church (PCA)
Jonesborough, TN
[i]et venite et arguite me dicit Dominus[/i]