[cyberax]

Yep, I explained it a bit more here: https://news.ycombinator.com/item?id=42299891

[mtdewcmu]

So you don't see _everything_ that went in before you, mostly just the _last_ thing.

[cyberax]

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.