That’s what I’m saying. A planet sized object comes cruising by, not necessarily in a polar direction (how many large objects are traveling that kind of path in a solar system, or otherwise???. And just how does that much “deep liquid” come to be floating around that it can be “acquired” “later”?
But back to the basic proference. Extinctions happen every 27 million years. If we nuke Iran out of existence tomorrow, does that changed the 27M configuration. And if yes, by how much?
I’m telling you there is some grant money out there we should be getting our share of.
I like how you think. ;’)