Did Karl Marx's theories on centralizing credit have anything to do with our current central banking system?
Karl Marx's theories on centralizing credit did not directly influence the development of modern central banking systems, but his ideas about the role of credit in the economy have had some influence on economic thought more broadly.

Marx believed that credit was an important tool for the working class to gain control over the means of production, and he saw centralizing credit as a way to counteract the influence of the bourgeoisie. He believed that a centralized credit system controlled by the workers would allow for the financing of cooperative enterprises and the development of a socialist economy.

Today's central banking system, however, has developed largely in response to economic and financial instability, and its primary role is to manage the money supply and regulate the banking system in order to promote economic stability and growth. While central banks do play a role in managing credit, they are typically not directly controlled by the workers or any other particular class.

It's important to note that while Marx's ideas have had some influence on economic thought and policies, his views on centralizing credit and the role of the state in the economy are not universally accepted, and there are many other factors that have shaped the development of central banking systems.