I'm not certain of the exact origins of the use of the word "tuning" but it certainly does work within the world of music. Tuning an instrument or use of a tuning fork, we are concerned with narrowing the result down to the right point. Sound the tuning fork then pluck the violin (or guitar or ...) string. Is the sound from the string higher in pitch than the tuning fork ... or lower? Adjust the tightness of the string and check again. Slowly you will reach the point where your ear cannot tell the difference in the note between tuning fork and string.
Tuning works for many different things. Although listening to a radio is becoming a rarer and rarer situation, it is once again a matter of narrowing in to the correct location. Move the tuning dial one direction and the signal becomes less clear. Move it in the other and it becomes clearer. The right place will give the best signal.
Tuning can also be used for various business practices. If you want to maximize profits then you want to maximize the profit/item times the number of items you sell. If you increase the price you will likely reduce the number of items you sell and you will probably sell more if the price is less. There is a "sweet spot" where the price gives you the greatest profit for a given number of sold items.
So, tuning can be used for physical processes such as sound or frequency detection. And it can be used within maximizing profits. In what other ways can tuning be found in everyday life? How about budgets? We know that budgets are a matter of balancing income with outgo (recent blog). But in order to refine the budget, some things may have to be reduced, or eliminated, to make it balance. Perhaps your rent goes up -- something else has to go down.
Menus, or diets, also have to be tuned. Factors involved include budget (and inflation), carbohydrates and other nutritional components, and variety and desirability. When I was growing up, my family was on the edge between lower income and middle income (sometimes one side, sometimes the other side) and there was a long period during which we had butter beans and ham hocks (hard to find them in the grocery store nowadays -- they were sometimes free) for six dinners a week. It took me years before I could stand eating a butter bean. But it was necessary. We needed food and we had very little money.
How about physical comfort? I really need cool nights to sleep well. But cooler nights in the summer (depending on climate) aren't free -- how to get to that balancing point where I can sleep adequately but not blow the budget?
I am sure that you can think of things that have trade-offs. Any such item will undergo a period of tuning. And that may change with time as components shift.
