Well, for the purpose of this discussion, based on the OP, there's something in his hand, and it's real, but it might not actually be a knife. It might be a banana.
It's a banana then.
If the rest of your scenario is accurate, there is certainly much more to be feared from the gun, but the gun isn't necessarily pointed at us right now. When it swings around to point at us, it might take our attention away from the knife/banana.
It's pointed at us right now.
It seems, then, the most important thing, in your scenario, is to forget the gun for a moment, and find out what is that thing in the other hand.
Nope it's a banana. And the gun Is pointed right at us, and we Don't know when it's going to shoot us, but it Will shoot us. Ask Science---they'll tell you.
But the one part of your scenario that doesn't seem to fit is the man! Who is the man, and why is he holding a gun in our presence, not to mention the knife/banana. Figuring out who he is might give us the answers to what we need to do about it. Is he benevolent to us? Is he malicious? What's his plan? Has he told us his plan?
It wasn’t my scenario.
The earth is a giant near-sphere of rock covered in soil and in sea water, with a fully enveloping atmosphere of air, that orbits a star. It is perfect for life, maybe especially for human life, right now, as it already is. In order to properly love creation and humanity (re: your OP), we must ensure to the best of our ability that this great rock the earth continues to sustain life, and most importantly, human life.
Science tells us that the last time that a real substantial meteor shot into the ground, that the then rulers of the world, the dinosaurs, were all extincted. How do we, the current rulers of the world, escape that same fate?
But imagine this "man" from the scenario. Imagine he's a giant man who doesn't need air, he's armed with a giant gun that shoots mountains for bullets, and he's way high up in the sky, in orbit around the earth. The man aims the gun at a spot on the earth and fires, and instead of a rifle, that shoots a bullet 3000 feet per second, the mountain goes closer to 20000 feet per second. A jetliner travels at 35000 feet. You can see them way up there in the blue sky sometimes, depending upon where you live. The mountain will take less than a count of two to hit the ground from that height.
But forget about the actual impact for a moment. Let’s think about post-impact. Science says that we can expect ‘nuclear winter.’ Nuclear winter is when so much finely divided particulate is blasted up into the sky, that it won’t all fall out of the atmosphere back to the ground again for a long time, and in the meantime, all the debris will act like an overcast sky the whole world round, and this overcast sky will persist for, according again to Science, years.
During those years of nuclear winter, the character of plant life on the whole earth will change to suddenly advantage plants that need protection from sunlight (i.e., ‘shade-loving’ plants), and to disadvantage plants that like ‘full-sun,’ e.g., Most of our current commodity cash Crops, including a very great deal of our Food.
The entire plant world will change within a geological blink of an eye, and a very great number of plant species will probably extinct, and as a direct result, so will a great number of animals who depend upon these plants for their own food.
And again, here we are thinking about ‘climate change,’ when the climate will surely change after impact, and on a logarithmic scale from 1-10, the ‘climate change’ we're talking about here, will change the climate maybe a 1, but a meteor impact will change it 10.
And yet none of the talk about ‘climate change’ ever, ever mentions doing anything to prevent or survive a new mountain suddenly plunging into the ground somewhere.
And remember that all the ‘climate change’ talk concerns Law. We are talking about making big new Law, to deal with ‘those gradually rising oceans.’ Big Law, global Law, Law that is going to impact everybody, crossing national boundaries, and the enforcement of which will empower current police, and perhaps necessitate the creation of new police, new World police, empowered to enforce the new Big Law that’s required to ‘stem the tide’ of ‘those gradually rising oceans.’
And I reason that if that’s what we’re talking about doing, and it is, then we should address the meteor before we do a darn thing about ‘those gradually rising oceans.’
:chuckle:
Those gradually rising oceans are going to kill us all.
iow, bananas don't kill people.