Hi, i am confused by the following question: When an observer is going towards the horizon of a BH from outside, he finds the light from far away so blue shifted that the far future of the far away world presents in front of him. Does that mean when he is crossing the horizon, he has seen everything in the infinite future? If it's true, there are questions: 1. Does this break the causal principle? As the observer has got information of the whole universe, including information outside his particle horizon. 2. When he has droped into the BH, what can he see? As he has seen everything before he drops into the BH, and what he sees after he goes cross the horizon seems to be at time "after" infinity. Thank you!