In both of these scenarios we see a defection from reality. Everyone knows that to lose weight, one needs to eat less candy, not more. But you accepted a cockamamie theory, and then used the theory to color your perception of reality. It is the same with this economist. He accepted the Keynesian paradigm of government involvement in the economy, which says that in times of economic downturn, it is the job of various government agencies to "stimulate" the economy by injections of money, which will bring the country out of the recession. The economist does not believe the actual data, just as you do not really believe the scale, because the theory "predicts" an economic upturn or a weight loss. This is blindness.
Let us examine why pumping money into the economy does not cause it to recover. First of all we have to realize that all macroeconomic theory has to have a microeconomic foundation or it is just fantasy. One major fault of Keynes is exactly that: he has no microeconomic foundation for his theory. He treats the macroeconomy as if it is a machine. If you press the gas pedal, it pumps more gas and air into the engine, raises the RPM, and the result is an increase in speed. This is like the child's version of economics. We need to ask how the influx of mere cash into the economy will affect the behavior of actual persons.
An increase in actual economic activity begins with savings being available for the purchase of capital goods, which are used to make consumer goods in the long run. Even if there are savings, those saving must be willing to risk their savings by investing in projects which over time will result in more consumer goods. All the plans of the entrepreneur for the production of consumer goods come to naught without the savings needed to purchase capital goods. Savings are an indication of savers’ time preferences. All men have a desire for things now, not later. To persuade persons to save, that is, to put off acquiring consumer goods now, their time preference must become lower. In order for a person to lower their time preference, they must be compensated in the future for goods not purchased now. That compensation is called interest or profit. The lower the time preference, that is, the longer that person is going to go without the availability of his money, the higher the interest rate is going to be; that is, the more compensation a person will demand. In economically uncertain times, additional interest that will be demanded is called a "risk premium." Now the interest paid to the saver becomes the "cost of capital" to the producer. The producer needs to predict that he will make enough money from selling his final product to pay the interest to all those who saved to help him produce the product. The higher the interest rate, the higher the cost of capital; the higher the cost of capital, the higher the cost to bring the product to market. But in an economic downturn, people are not able or willing to pay more for things, but actually look for cheaper things. The result is that the entrepreneur is reluctant to borrow money for his project because he might not be able to sell it.