The text says that in addition to the four social revolutions that we have had, we may be entering a fifth based on

We may be entering a fifth based on "m apping the human genome and biotech".

The four revolutions are as underneath:

1. Hunting and gathering social orders formed into green and peaceful social orders.

2. The plough realized agricultural social orders.

3. Steam motor brought the mechanical revolution.

4. Microchip transformation is driving us towards a biotechnological society.