Ever wondered where does the $$$ in your bank comes from?

Finally, long time since got a bit of time to blog....
Ever wondered if the money in your bank is just digits? Those digits that you slogged for with your time, sweat and sometimes "blood", where do they come from?

This is just my personal reflection from the recent subprime collaspe in US and the Northern Rock bank crisis in England where there was a run on the bank. Found a 3-part video that is interesting, it enabled me to make the connection to monetary theory in Economics lessons in JC. Read no further, here is the 3 part video...

Part 1

Part 2

Part 3