I am learning that the order of causally disconnected events is the same for every observer regardless of your point of view, but it's beyond my comprehension what exactly it is? Are there real time examples? here is the diagram from the you tube video.
for observer A event order is 1,2,3 for observer B event order 2,1,3 but 2 is always happening before 3 for both observers because 2 is causally disconnected. In order to change the order of 2 we have to travel faster than speed of light.