There are just too many subjective judgements that have to be made to come to any conclusion, and as I point out in my piece, we are predisposed to forgive those deceivers that share our worldviews and punish those who do not.
But Mr Johnson, who was made shadow chancellor two weeks ago, accused the government of being "deficit deceivers" who had peddled "myths" to the British public, including that the "biggest global economic crisis since the Great Depression is the fault of the previous government".