When we read some economists, economics seems like a problem so logical and so simple that it really scares the stupidity of those who govern it in the real world. Today, there are more than enough historical examples of economic measures that have proven to be fruitful or disastrous, so that, in the vast majority of cases, or rather, as far as macroeconomic guidelines are concerned, there could be no doubt about how one who intends prosperity should act. But then, theoretical pragmatism seems absolutely inapplicable to reality, in which the most diverse interests, some mean, some naive, perverse or irresponsible, are placed in the foreground, to the detriment of that already weakened and distant objective that should guide all economic measures. The conclusion is only one: the human element makes any equation unfeasible.