“Fine tuning” is an idiom that means making small adjustments to improve performance. It originated from tuning old radios and TVs. The phrase is used figuratively to refer to simple modifications to make something work better. It implies that the changes are minor and not too difficult to make.
“Fine tuning” is an English idiom that describes the process of making relatively small changes to get the optimum performance out of something. In its literal sense, it can refer to a television or radio that must be tuned precisely for maximum effect. More figuratively, “fine-tuning” refers to any kind of simple modification that a person makes to make something work or perform the way they want it to. Such adjustments are often made for things that aren’t quite lost causes, but aren’t quite top-performing either.
There are often occasions where someone uses a phrase or saying that, if taken literally, would make no sense at all. This is because these phrases are idioms, which tend to take on meanings that are very different from their original intent or the literal meanings of the words they contain. These idioms are useful when talking to people who are familiar with the expressions. A popular idiom is the phrase “fine tuning.”
Whenever this phrase is used, it means that there must be some sort of adjustment to be made about something. The key to the meaning of the phrase is that these adjustments are relatively minor, both in terms of scope and in terms of the effort to make them. If the changes were of a more substantial nature and caused a great deal of strain on the person making them, they would probably go beyond the scope of what is considered “fine-tuning”.
This sentence implies that there is not much that can be done to put things in perfect order. For example, someone might say, “I’m not 100% happy with my investment portfolio, but all it really needs is a little tweaking.” In this example, the portfolio isn’t in the worst shape, but it could perform better. A few small adjustments are enough to get to the point where the person in question is completely satisfied.
The origins of the phrase come from the fact that appliances such as old-fashioned televisions and radios actually had tuners that had to be adjusted by their users. It’s easy to imagine someone turning a knob on a radio in small increments to try and get a station’s signal just right. There are times when the phrase “fine tuning” can still refer to an actual tuner, but, in most cases, it requires a less literal interpretation to understand the meaning of the idiom.
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