*Potential Spoilers for Subnautica below*
One of the things I don't get about Subnautica, and none of the streams I have examined has made clear, is a question.
Are you on a hidden timer all game long?
I know there some timed events you cannot intervene in. The Aurora exploding for instance. (In fact, supplementary question, can you rush the Aurora and get caught in the explosion?)
I think I know that if you put off going to the Aurora long enough the radiation level will give you a game over.
Is there yet another, better make progress or else, timer in the other progression?