Take a measuring ruler and cut it in half, 1 to 6", and put it somewhere in the universe. Let’s call it Location 1-6 (L1-6)
Take the second half, 7 to 12", and put it somewhere else in the universe. Let’s call it Location 7-12 (L7-12)
You, the person who cut the ruler, knows the cause, the knowledge, and use of the ruler, i.e., the numbers and markings are units of measurements, etc. You are also the ‘cause’ of it being cut in half.
A person, being, whatever as long as it has a consciousness that can interpret a material object, finds the artifact in L1-6. If the cut you made at 6 is as smooth as the cut at 12 then the piece is going to be interpreted as a whole by the person in L1-6. Use this same event for a person at L7-12.
From that model you can begin to examine all the different interpretations possible as to cause and non-cause by the 3 interpreters: You and the others in L1-6 and L7-12. You could expand and cover other areas of investigation too. (Yes, you could also dip your tootsies in metaphysical waters if you like). You could write a paper or even a book about the subject matter.
A brief example: The beings who find the artifact in L1-6 and L7-12 are going to know nearly nothing about the artifact. All their sensoriums provide is perhaps shape, texture, weight, and the presence of some markings.
The being at L1-6 takes the artifact to some of his buddies. One of them who fancies herself a bit advanced tells him that since there is no previous evidence and no connections to anything known, the artifact is then an example of an uncaused cause.
The being at L7-12 goes through the same process but one of his buddies says that he’s seen something like this before, the markings look familiar. Thus a search begins through whatever scientific or other records exist in L7-12. There is a cause, they just haven’t narrowed it down to what precisely.
You, the person who knows exactly what the ruler is, may or may not know about the beings on L1-6 and L7-12. For you it was just a simple experiment. Fly your ship down to the atmosphere of L1-6, throw the first half of the ruler out the window and then leave. Same for L7-12.
Connections? Effects? Cause? Uncaused? It all depends on the perceptions, and of course, minor considerations like respective spatio-temporal paradigms of the parties involved.
I leave the reader to his or her own variations.