3 ms·

> Isn't this true of all matter that enters? Not quite. He will see the light emitted by _all_ of the matter that has fallen in before him, but only in an infi

• mtdewcmu 2y ago
  A single photon can't be seen multiple times, right? So, if photon A goes into Alica's retina, then Bob can't see photon A. If a big, opaque object passes through the event horizon right in front of you, it would absorb or scatter the photons in its path, and you would not see them.
  • cyberax 2y ago
    Yep, I explained it a bit more here: https://news.ycombinator.com/item?id=42299891 https://news.ycombinator.com/item?id=42299891
    • mtdewcmu 2y ago
      So you don't see _everything_ that went in before you, mostly just the _last_ thing.
      • cyberax 2y ago
        You'll see kind of a "cone" where the light emitted from all the objects just ahead of you can be seen, but as you look further away, you can see only more and more recent objects.