but the parent poster is correct: it is unambiguous and well litigated in its benefits and downsides.
even if the benefits are only mild, it makes it easy to map out and control the legal risks.
If we are talking about a flywheel as an energy storage, low friction is a key component of its ability to store energy as a buffer. If this was not the case, the flywheel would lose its energy quickly on its own and the buffer would be gone.
> People love to use it to describe a forever growing thing, when it’s actually just a buffer.
A thing has other characteristics other than its intended purpose. Your assumption that you need to use intended purpose for a successful analogy is false.