there is no spoon

"It is very likely that this infant, when placed in its high-chair at
the dining table, will pick up and shake a graspable item that has a
rounded shape at one end. We call that item a spoon and may say that
the infant is assimilating it to its rattling scheme; but from the
infant's perspective at that point, the item is a rattle, because what
the infant perceives of it is not what an adult would consider the
characteristics of a spoon but just those aspects that fit the
rattling scheme." - ernst von glasersfeld