A bridge too far
You wrote: "Regardless of what ‘magical’ powers an alien race possesses, it will still have to follow the laws of physics."
Yes, if we knew them all, we'd be in a better position to decide what is and isn't possible.
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Drugs, meanwhile, are a cash cow for an assorted collection of people up and down the ranks of humanity, on both sides of the law, with the people caught in the middle.
There's an enormous amount of money generated by the illegal drug traffic. Don't you ever wonder where it all ends up?
sp