Physics and mathematics afford examples of a revisioning of basic material from an entirely new perspective, using entirely new terms which resolves contradictions or incompletenesses at a prior level. These do not appear as 'syntheses' of the prior perspectives even if in some sense transcend and include them, they are rather examples of a leap to a different level of understanding. In these cases the new perspective cannot be reduced of modeled in terms of the old one, and a genuine effort of thought is required to see matters in a new way. In these cases the kind of being that is presumed, the nature of the inclusive 'there is...' does not however change, and is in fact what guarantees the status of the new perspective as a continuation of the old. If a similar leap is contemplated at the level of the 'there is...' these examples cannot function as useful analogies.