Correct. Unfortunately I don’t think Clive Thompson has a Discourse account. 
The odds are in our favor insofar as the Dinosaur killer that inevitably eventually intersects Earth’s solar orbit will likely be one the many more comets dragged in by Jupiter. However, if a molecular cloud intersected the Solar System’s galactic orbit, it would likely disrupt all solar orbits and possibly destroy our atmosphere. Fortunately, this is even less common. We’re in far more danger from ourselves than galactic near-misses. As cool as all this is, and it’s very cool indeed, actually worrying about it is a prime example of poor risk analysis.
