These are much cheaper, faster, and more secure than using large volumes of cash, particularly over long distances. The financial system also facilitates transactions that involve borrowing and lending. For example, individuals accumulate savings in our financial system, and invest those savings in assets like shares and term deposits.
The design of the coin reflects the multidisciplinary nature and interconnectedness of social sciences, economics being their integral part. The reverse of the coin, which contains a carved geometric symbol of separate cubes, forming the common societal construction, demonstrates that only by acting together, we can overcome the challenge of climate change and  implement the vision of a sustainable future.