käyttöilmiö
Käyttöilmiö is a Finnish term that translates roughly to "usage phenomenon" or "effect of use." It refers to a change or impact that occurs as a result of how something is used or interacted with. This concept can be applied in various contexts, from the physical wear and tear on an object to the social and psychological effects of using technology or participating in a particular activity.
In the context of physical objects, a käyttöilmiö might describe how a tool develops a patina over
More broadly, käyttöilmiö can describe the unintended consequences or emergent properties that arise from the application