This is what I call "a 3-minutes-more movie"...*spoilers*
There are countless movies out there with ambiguous endings. As long as the characters won't learn the truth either I am relatively OK with it. Don't like it but I accept it, even forgive it if after some thinking you end up with a relatively safe conclusion about what happened.
There are some movies though that it seems like they ran out of film a few minutes before the ending. What I call a 3-minutes-more movie. This is a stellar example of such a movie. All what is happening will be explained moments after the remaining two will climb the ladder to the surface. It was a catastrophic event and the message was prerecorded? It was all part of the simulation?
Just a couple of minutes more and a clever conclusion might transofmed this movie to something good.
But...
Cosmos hates Google.