It's because it's not directly our "visual" observation only of the double slit experiment that effects it.
What if the Aether field actually exists and was undetectable by the interferometer experiment because it is vibrating at the speed of energy? (c2) This would lend to the constancy of the velocity of light because it would create an incredibly "slick" medium for it to travel through.
When the particles travel through this medium they create waves and are distributed by the waves into the interference pattern.
When we bring our attention to the particles, we also make a connection with our feelings/spirit/consciousness, which somehow collapses the wave function, by virtue of the fact that our feelings radiate as energy and are hardwired to this field, and then the particles return to appearing only in particle patterns.
When two particles entangle and familiarize, they establish an aethereal connection which remains when they are seperated even by great distance.
This would also explain why identical twins and siblings and others who are close, have an instantaneous intuitive bond no matter where they are when they are seperated.