As they get closer to each other they will pull more furiously towards each other like a magnet. When they are close enough to over come the obstacles keeping them down they will snap together very rapidly and no one seems to really know what kind of event that will be. But it seems that this is something that we will most likely see in our lifetime if not in the next 5 to 10 years...or maybe even less. But I do now know how anyone could prepare for this. If it's going to be catastrophic then I don't see how we can plan and I bet the ones that do know what's going on probably aren't going to be letting us know. 🤷‍♀️