So, after reading (most of) Star Trek: Countdown I am left struggling with the physics of the whole thing. 1. How can a supernova light-years away destroy Romulus so quickly? 2. The whole time-scale seems screwed. One sec they are still talking about building up the red-matter and a second later the star has gone nova. I know that ST does not always stick to the basic laws of physics but surely this is just plain stupid.