My pet theory is when you make an observation you're narrowing down which subset of the many universes you might reside in. So the particles simply are going to

My pet theory is when you make an observation you're narrowing down which subset of the many universes you might reside in. So the particles simply are going to behave the same even though there is no way to know what reality you'll get when you check on the first one. However once you do check on the first one it reduces the subset of possible realities you are in which includes possible outcomes for observation of the paired particle.