Pessimism is a mental attitude in which an undesirable outcome is anticipated from a given situation. Pessimists tend to focus on the negatives of life in general. A common question asked to test for pessimism is "Is the glass half empty or half full?"; in this situation, a pessimist is said to see the glass as half empty, or in extreme cases completely empty, while an optimist is said to see the glass as half full. Throughout history, the pessimistic disposition has had effects on all major areas of thinking.

Etymology The term pessimism derives from the Latin word pessimus, meaning 'the worst'. It was first used by Jesuit critics of Voltaire's 1759 novel Candide, ou l'Optimisme. Voltaire was satirizing the philosophy of Leibniz who maintained that this was the 'best (optimum) of all possible worlds'. In their attacks on Voltaire, the Jesuits of the Revue de Trévoux accused him of pessimisme.

As a psychological disposition In the ancient world, psychological pessimism was associated with melancholy, and was believed to be caused by an excess of black bile in the body. The study of pessimism has parallels with the study of depression. Psychologists trace pessimistic attitudes to emotional pain or even biology. Aaron Beck argues that depression is due to unrealistic negative views about the world. Beck starts treatment by engaging in conversation with clients about their unhelpful thoughts. Pessimists, however, are often able to provide arguments that suggest that their understanding of reality is justified; as in Depressive realism or (pessimistic realism). Deflection is a common method used by those who are depressed. They let people assume they are revealing everything which proves to be an effective way of hiding. The pessimism item on the Beck Depression Inventory has been judged useful in predicting suicides. The Beck Hopelessness Scale has also been described as a measurement of pessimism.

Wender and Klein point out that pessimism can be useful in some circumstances: "If one is subject to a series of defeats, it pays to adopt a conservative game plan of sitting back and waiting and letting others take the risks. Such waiting would be fostered by a pessimistic outlook. Similarly if one is raking in the chips of life, it pays to adopt an expansive risk-taking approach, and thus maximize access to scarce resources."

The leading causes of pessimism are genetics, past experience, and social and environmental factors. One study of 5,187 teenage twins and their siblings suggests that genetics may account for one-third of the variance in whether someone leans toward pessimism vs. optimism, with the remaining variance due to their environment, and twin studies suggest that, when it comes to personality, about half the differences between us are because of genetic factors. But Spector points out that throughout our lives, in response to environmental factors, our genes are constantly being dialled up and down as with a dimmer switch, a process known as epigenetics.

Criticism

Pragmatic criticism Through history, some have concluded that a pessimistic attitude, although justified, must be avoided to endure. Optimistic attitudes are favored and of emotional consideration. Al-Ghazali and William James rejected their pessimism after suffering psychological, or even psychosomatic illness. Criticisms of this sort however assume that pessimism leads inevitably to a mood of darkness and utter depression. Many philosophers would disagree, claiming that the term "pessimism" is being abused. The link between pessimism and nihilism is present, but the former does not necessarily lead to the latter, as philosophers such as Albert Camus believed. Happiness is not inextricably linked to optimism, nor is pessimism inextricably linked to unhappiness. One could easily imagine an unhappy optimist, and a happy pessimist. Accusations of pessimism may be used to silence legitimate criticism.

Nouriel Roubini, an economist who introduces himself as Dr. Doom, was largely dismissed as a pessimist in 2006 for his dire but to some extent accurate predictions of a financial crisis, ahead of the 2008 financial crisis. However, financial journalist Justin Fox observed in the Harvard Business Review in 2010 that the crisis Roubini predicted was not at all like the 2008 financial crisis; it involved a currency crisis and run on the dollar and dismissed Roubini's predictions as inaccurate. Others noted that "The problem is that even though he was spectacularly right on this one, he went on to predict time and time again, as the markets and the economy recovered in the years following the collapse, that there would be a follow-up crisis and that more extreme crashes were inevitable. His calls, after his initial pronouncement, were consistently wrong. Indeed, if you had listened to him, and many investors did, you would have missed the longest bull market run in US market history."David Lawrence (February 4, 2022). "Why year-ahead stock predictions are usually wrong," North Bay Business Journal.Jayson MacLean (May 6, 2020). "Nouriel Roubini warns of Great Depression just like he did last year (and the year before that)," Cantech Letter."Market gurus:Overrated Dr Roubini flops—again," Moneylife, March 10, 2011."How much should you trust economists' predictions?", AZ Central, May 8, 2014. Another observed: "For a prophet, he's wrong an awful lot of the time."Joe Keohane (January 9, 2011). "That guy who called the big one? Don't listen to him." The Boston Globe. Tony Robbins wrote: "Roubini warned of a recession in 2004 (wrongly), 2005 (wrongly), 2006 (wrongly), and 2007 (wrongly)" ... and he "predicted (wrongly) that there'd be a 'significant' stock market correction in 2013."Tony Robbins, Peter Mallouk (2017). Unshakeable; Your Financial Freedom Playbook Speaking about Roubini, economist Anirvan Banerji told The New York Times: "Even a stopped clock is right twice a day."Emma Brockes (January 23, 2009). "He told us so," The Guardian. Economist Nariman Behravesh said: "Nouriel Roubini has been singing the doom-and-gloom story for 10 years. Eventually something was going to be right."Helaine Olen (March 30, 2009). "The Prime of Mr. Nouriel Roubini", Entrepreneur.

Personality Plus opines that pessimistic temperaments (e.g., melancholy and phlegmatic) can be useful inasmuch as pessimists' focus on the negative helps them spot problems that people with more optimistic temperaments (e.g., choleric and sanguine) miss.

Other forms of pessimism

Philosophical pessimism

Philosophical pessimism is not a state of mind or a psychological disposition, but rather it is a worldview or philosophical position that assigns a negative value to life or existence. Philosophical pessimists commonly argue that the world contains an empirical prevalence of pains over pleasures, that existence is ontologically or metaphysically adverse to living beings, and that life is fundamentally meaningless or without purpose.For discussions around the views and arguments of philosophical pessimism see:

Political and cultural

Philosophical pessimism stands opposed to the optimism or even utopianism of Hegelian philosophies. Emil Cioran claimed "Hegel is chiefly responsible for modern optimism. How could he have failed to see that consciousness changes only its forms and modalities, but never progresses?"Cioran, Emil. A short history of decay, pg 146 Philosophical pessimism is differentiated from other political philosophies by having no ideal governmental structure or political project, rather pessimism generally tends to be an anti-systematic philosophy of individual action. This is because philosophical pessimists tend to be skeptical that any politics of social progress can actually improve the human condition. As Cioran states, "every step forward is followed by a step back: this is the unfruitful oscillation of history".Cioran, Emil. A short history of decay, pg 178 Cioran also attacks political optimism because it creates an "idolatry of tomorrow" which can be used to authorize anything in its name. This does not mean however, that the pessimist cannot be politically involved, as Camus argued in The Rebel (1951). Pessimism about the human condition was also expressed by Hobbes (1588–1679).

There is another strain of thought generally associated with a pessimistic worldview, this is the pessimism of cultural criticism and social decline. Anthony Trollope summarised the attitude with gentle mockery in 1880: "Everything is going wrong. [...] Farmers are generally on the verge of ruin. Trade is always bad. The Church is in danger. The House of Lords isn't worth a dozen years' purchase. The throne totters."

Oswald Spengler's The Decline of the West (1918–1922) popularised pessimism. Spengler promoted a cyclic model of history similar to the theories of Giambattista Vico (1668–1744). Spengler believed that modern western civilization was in a "winter" age of decline (). Spenglerian theory was immensely influential in interwar Europe, especially in Weimar Germany. Similarly, traditionalist Julius Evola (1898–1974) thought that the world was in the Kali Yuga, a Dark Age of moral decline.

Intellectuals such as Oliver James correlate economic progress with economic inequality, the stimulation of artificial needs, and affluenza. Anti-consumerists identify rising trends of conspicuous consumption and self-interested, image-conscious behavior in culture. Post-modernists like Jean Baudrillard (1929–2007) have even argued that culture (and therefore our lives) now has no basis in reality whatsoever.

Conservative thinkers, especially social conservatives, often perceive politics in a generally pessimistic way. William F. Buckley famously remarked that he was "standing athwart history yelling 'stop!, and Whittaker Chambers (1901-1961) was convinced that capitalism was bound to fall to communism, though he himself became staunchly anti-communist. Social conservatives often see the West as a decadent and nihilistic civilization which has abandoned its roots in Christianity and/or Greek philosophy, leaving it doomed to fall into moral and political decay. Robert Bork's Slouching Toward Gomorrah and Allan Bloom's The Closing of the American Mind are famous expressions of this point of view.

Many economic conservatives and libertarians believe that the expansion of the state and the role of government in society is inevitable, and that they are at best fighting a holding action against it.Compare:

They hold that the natural tendency of people is to be ruled and that freedom is an exceptional state of affairs which is now being abandoned in favor of social and economic security provided by the welfare state. Political pessimism has sometimes found expression in dystopian novels such as George Orwell's Nineteen Eighty-Four. Political pessimism about one's country often correlates with a desire to emigrate.

During the 2008 financial crisis in the United States, the neologism "pessimism porn" came to describe the alleged eschatological and survivalist thrill some people derive from predicting, reading, and fantasizing about the collapse of civil society through the destruction of the world's economic system.Pessimism Porn: A soft spot for hard times, Hugo Lindgren, New York, February 9, 2009; accessed July 8, 2012Pessimism Porn? Economic Forecasts Get Lurid, Dan Harris, ABC News, April 9, 2009; accessed July 8, 2012Apocalypse and Post-Politics: The Romance of the End, Mary Manjikian, Lexington Books, March 15, 2012, Pessimism Porn: Titillatingly bleak media reports, Ben Schott, New York Times, February 23, 2009; accessed July 8, 2012