How much Tungsten would you need, accelerated to what speed, to cause the equivalent of the impact that killed the dinosaurs? Too much, I bet. (I haven’t calculated it) Whereas that sort of thing could be done easily with asteroids.
OK, let me reformulate the question: How cost effective is tungsten compared to asteroids, at city-destroying levels of power? (I agree destroying the whole world is less likely to be attempted)
How much Tungsten would you need, accelerated to what speed, to cause the equivalent of the impact that killed the dinosaurs? Too much, I bet. (I haven’t calculated it) Whereas that sort of thing could be done easily with asteroids.
It’s unclear to me why someone would want that kind of impact to achieve military objectives.
OK, let me reformulate the question: How cost effective is tungsten compared to asteroids, at city-destroying levels of power? (I agree destroying the whole world is less likely to be attempted)