Capitalism is an economic system based on private ownership of the means of production and capital goods, and the production of goods and services for profit in a market economy.
Not sure where you got this idea on "constant growth," considering that production is dependent on raw resources, and raw resources are finite, and this fact itself is within the system of capitalism, which increases prices practically in a mechanism you may know as the supply/demand curve. As price increases, demand decreases, thus slowing growth inline with diminishing supply.
If you want to discuss any other elementary-level economics in a condescending tone that treats the reader like a misbehaving child, just reply with a comment that ignores everything about the article or the thread's content, and continue building up the conceptual walls to buttress your ego, preferably with sweeping, general statements spoken as if indisputable fact.