Thanks for your response always interesting to hear different perspectives. Your answer was a little complicated to understand but I would say more and more we’re becoming aware of the flexible reality and notion of time we live in. I found this article on quantum darwinism fascinating and I think you will as well. It’s an attempt to explain how on a large scale objects we observe become fixed through their ability to copy themselves multiple times. It’s the beginning of reconciling quantum with classical theory.
“One of the most remarkable ideas in this theoretical framework is that the definite properties of objects that we associate with classical physics — position and speed, say — are selected from a menu of quantum possibilities in a process loosely analogous to natural selection in evolution: The properties that survive are in some sense the “fittest.” As in natural selection, the survivors are those that make the most copies of themselves. This means that many independent observers can make measurements of a quantum system and agree on the outcome — a hallmark of classical behavior.” Quote taken from article.
Quantum Darwinism begins to reconcile how we all see position and speed as the same, even though on the micro level we the observer make choices on possibilities. The environment plays it’s hand!
Anyway back to UFO’s and how this relates — if they’re coming from another dimension (non corporeal) then they’ve found a way to enter our objective reality by fixing their position and speed so we see them. Thus many independent observers amongst us can agree on what we’ve seen, even though these craft maybe operating in what we might call a quantum reality.