In the age of Silicon Valley-Capitalism, growth for the sake of growth is the name of the game. Small start-ups are by definition required to grow and grow quickly to survive, raise funds and become profitable. Similarly, human cells (stems cells) grow and proliferate exponentially in the early stages of life. However, in an adult human body, cell growth for the sake of growth is called cancer.
In a normal cell, powerful genetic circuits regulate cell division and cell death. In a cancer cell, these circuits have been broken, unleashing a cell that cannot stop growing. –Siddhartha Mukherjee