Heroprime

Well I had to read that last phrase three times before I got it... I don't think you can assume space-time is dark matter. First, we don't know much about dark matter and we only theorise its use. Second dark matter is supposed to be a type of matter that is undetectable and the only thing it does is have a gravitational field. Also, space time isn't something, it's the entire "volume" of our universe, it's not a flat sheet of paper. I think it's hard to explain, but it is not something, it is where everything exists. I think a good comparaison would be a game. Take a sandbox game and create a completely empty world. The world is now "space time". It's not something, it's somewhere everything else can exist.

The question is more depending on the point of view, do bad eggs smell sulfur, or does the sulfur as a gaz smell like bad eggs, because they are often associated one with each other, so wich is the basic smell that defines the other?

If you think about it, it already happened once, during the Christian golden age, all scientists were considered sorcerers and were killed, tortured and burned. During this time the human civilisation had almost no progress, so if it will happen again, some sort of religion will rule the entire world and they will reject facts and science, humanity will stop progressing.

Do eggs smell sulfur or does sulfur smell bad eggs?

The main problem is maybe the efficiency of that sort of gun. I'm not sure how much uf plasma you'll need to burn though a tank.