The primary deceptiveness of Keynesian stimulus is its obscuration of A + B and the cost inflationary nature of commerce enforced by the convention of cost accounting that all costs must go into price despite the fact that the data shows that in the normal and unfettered operation and flow of the economy  more costs and hence more prices are created than it simultaneously creates in individual incomes. The other two deceptive things about it is its false claim to resolve our economic disequilibrium only by injecting money into the economy/commerce instead of costlessly Gifting the individual directly and only to match the diminutions to the circular flow of money within the economy…while again being unconscious of the accounting flaws that will still disequilibrate the economy via the creation of excess costs in ratio to individual incomes.

This is not to deny the problematic reality of the continuous diminution of large amounts of money to the circular flow of the economy, only to point out that the subtle, complementary and more insightful reality that costs dynamically and simultaneously push up prices from the lower end of their formation, and so must be factored into economic theory and remedied by economic policy.