sha1000
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Indeed A is no longer observing the spaceship. All he observers are the signals which are emitted by the spaceship.Orodruin said:Again, R is not what you think it is.A will never see the spaceship cross the horizon no. Simply because A cannot see inside the horizon by definition of the horizon. This is also true about the situation in post #39.
As Peter said, just because A cannot see it happen does not mean it doesn’t happen.Yes. The spaceship will cross the horizon (and hit the singularity) in finite proper time.What signals? The signals are sent to A, not to B.
And what he can see is that the interval between those signals is increasing and at some point becomes infinitely large, but never completely disappears.