What I learned
Before reading a number,
I now look at the structure that produced it.
The same amount can mean very different things depending on when it occurs, which contract created it, and whether it is an asset or a liability.
Present value and financial instruments in particular taught me to consider future cash flows and timing, not just today's figure.
Application to banking and finance
When designing services,
I will look at the money flows behind the screen.
Banking and financial services are not complete with a customer-facing screen alone.
When reviewing a long-term service or a business with ongoing costs, I will look beyond immediate cost and revenue to the timing and structure of future cash flows.
As a planner, I want the fundamentals to discuss the same numbers with finance and accounting teams and understand how a business case translates into figures.