This is not how the double slit experiment works though. "Observe", in quantum physics should be read as "interacts with a thing", it doesn't require a conscious observer.
I have a friend whose research requires a thorough understanding of quantum mechanics. She told me that she feels like she understands quantum mechanics, until she stops and thinks about it in a way that isn't limited to the equations and data that she's used to manipulating. Then, it blows her mind so much that she feels like she has to sort of "reboot" her brain and tell herself "it's okay, just don't think about it too much bro". I find this hilarious, and quite relatable (even though I know relatively little of quantum mechanics)
No. If that was how it worked it would be impossible to perform the double slit experiment with anything larger than a single fundamental particle, but that is demonstrably not the case. It would also be impossible to perform it in a gravitational field - or any field, for that matter.
The truth is that you cannot talk about what the double slit experiment 'means' without going into discussion of interpretations of quantum mechanics.