Dialectics is a philosophy of change, explaining that all matter is in a state of motion and flux. But how does this change take place?
Using a number of examples from science - from thermodynamics, to evolution, to chaos theory - Ben demonstrates one of the basic principles of dialectics: that change occurs through a process of 'quantity and quality'.
In other words, the gradual accumulation of small quantitative changes eventually leads to the qualitative transformation of a system to a new equilibrium state.
Such 'tipping points' are seen all around us in nature - and, Ben stresses, in society also, in the form of capitalist crises and revolutions.
This is why an understanding of dialectics is so vital for all Marxists and revolutionary activists today.