A cornucopian is a futurist who believes that progress and supply of material for mankind can be met by similarly continued advances in technology. Fundamentally they believe that there is enough matter and energy on the Earth to provide for the population of the world.
Looking forward to the future, they posit that the abundance of matter and energy will grow.
The term comes from the cornucopia , the „horn of plenty“ of Greek mythology , which magically supplied its owners with endless food and drink. The cornucopians are known as „boomsters“, and their philosophical opponents- Malthus and his school-are called „doomsters“ or “ doomers .“ 
„When civilization [population] increases, the value of the increase in the value of the increase is increased. , and, as a result, profits are again multiplied in the town, and it is thriving even more than before, and so it goes with the second and third increase. that served the necessity of life. „- Ibn Khaldun (1332-1406), from Muqaddimah 
As a society becomes more wealthy, it also creates a well-developed set of legal rules to produce the conditions of freedom and security that progress requires.
In Progress and Poverty Written in 1879, after describing the powerful reproductive forces of nature, the political economist Henry George wrote, „That the earth could maintain a thousand trillion of people as a thousand million is a necessary deduction from the manifest truths that , at least so far is our agency is concerned, is eternal and force must forever continue to act. “ 
Description by an opposing view
Stereotypically, a cornucopian is someone who has a limited ability to provide natural growth. The label ‚cornucopian‘ is rarely self-applied, and is most commonly used by those who believe that the target audience will be available in the future.
One of the examples of this labeling is that of the technology that can solve, or overcome, the problem of an exponentially-increasing human population  living off a base of natural resources. Cornucopians might well have grown up dramatically, and it is not only that, it is currently growing at a linear rate,  but is projected to peak and start declining in the second half of the 21st century .  Furthermore, it is even more important that growth increases.
- Ibn Khaldun
- Food security
- Jacque Fresco
- Thomas Robert Malthus
- John McCarthy
- Julian Simon and Simon-Ehrlich wager
- Matt Simmons
- Post-scarcity economy
- Jump up^ John Tierney (December 2, 1990). „Betting on the Planet“ . The New York Times Magazine .
- Jump up^ Ibn Khaldun, Muqaddimah , 2: 272-73, quoted in Dieter Weiss (1995), „Ibn Khaldun on Economic Transformation,“International Journal of Middle East Studies 27(1), p. 29-37 .
- Jump up^ Henry George, Progress and Poverty, (1879; reprinted, 1912. Library of Economics and Liberty.), Book II, Chapter 3
- Jump up^ „Population Growth over Human History“ . University of Michigan. Archived from the original on July 24, 2011.
- Jump up^ „International Data Base (IDB): Total Midyear Population for the World: 1950-2050“ . US Census Bureau. Archived from the original on 2007-10-17.
- Jump up^ World population to 2300United Nations; Department of Economic and Social Affairs, 2004