I learned about legislation and how this is different from continent to continent. It helps to understand the legal limitations that are set to Whisky and Whiskey. It helps to understand how this legislation limits the flavours that are able to be produced by American and Scottish producers. It helps to understand the economics of reused casks from the USA and how this limits the Scotch Whisky Industry. This is a partly self-chosen limitation based on available of reasonably priced casks.