They're not examples, chansen, but metaphors. And no metaphor is perfect. Still, they show that you are willing to believe in the existence of some things that are invisible.
Sorry Jae you are in error again.
All these things are invisible to the naked eye, yet all are testable.
1. Air
2. Magnetic Fields
3. Gravitational Forces
4. Microscopic Life
5. Ultraviolet
6. Electromagnetic Waves
7. Electric Fields
8. Sound Waves
9. Neutrinos
10, Wind
And all these things are invisible, yet all are testable.
11, Peace
12, Love
13, Happiness
14, Justice
15, Freedom
16, Courage
17, Forgiveness
18, Hope
19, Trust
20, Faith
The first set of examples show how even though these things are invisible, science provides tools and methods to test, measure, and study them effectively.
And the second set show why love and peace etc though they are not testable in the same empirical way as physical phenomena, their effects, manifestations, and correlates in psychology, neuroscience, sociology, and other fields make them observable and analyzable. This indirect testing helps provide insights into these deeply human experiences.
Both sets share the quality of being intangible yet deeply impactful. Through indirect testing and the observation of their effects, they can be studied scientifically or socially, offering insights into their very nature and influence.
And please note Jae that even trust faith and hope are included in this example.
This illustration shows that while the methods of "testing" or "observing" might differ I.E. direct scientific measurement for physical phenomena vs. indirect inference for human experiences, both have significant effects that are observable and analyzable.
So I suggest Jae you think before you speak in future. You may avoid making such mistakes.