Your name is Eric, and your a fairly typical teenage American boy. You're in your room surfing the net one night, when suddenly, you're blinded by a bright flash of light and flung out of your chair and across the room as an incredible force hits you. Slowly, your vision clears, and you begin to pick yourself up off the floor, only to freeze in your tracks at the sight before you. Standing in your room is a man at least eight feet tall, incredibly muscular with pure white hair and beard, and eyes filled with stars bathed in a brilliant golden radiance.
"Who-who are you? Are you like, God or something?" you stammer nervously, amazed by the sight before you, but frightened by it as well, being unsure of the beings intentions towards you.
In answer to your question, the being intones in a voice like thunder "Not as you humans understand the concept, but it is as close to the truth as your feeble minds are capable of comprehending. I am Alkazar the All Powerful. I have watched the formation of galaxy's, seen countless stars be born, grow old, and die, their last ebbs of energy bleeding out into the cosmos. I have been watching you as well Eric Johnson, and I have chosen to grant you one wish. Anything you desire is within my power to grant, but be aware that your wish will affect not just yourself, but rather, the entire human race, every man, woman, and child, both born and those yet to be born, onward to the ends of time."
"Anything I want, seriously?! And whatever I wish for will affect everyone?" you exclaim, unable to believe that this is really happening, certain that you must be dreaming, as you know something like this could never happen in real life. With that in mind, you decide that since this IS a dream, it won't hurt for you to ask for the fulfillment of one of your more bizarre and perverted fantasies.
"It shall."
The mighty figment of your imagination rumbled, the sheer presence of the being causing you to wonder briefly if maybe this really wasn't a dream after all, and that maybe you should be more cautious about what sort of wish you decided to make, or whether you should make one at all for that matter, but you quickly dismissed the notion.
Carefully thinking over your wish, a particular fantasy comes to mind, one involving yourself as overlord of an advanced star faring civilization, with the authority and technology available to allow you to do virtually anything you desire, no matter how bizarre or perverted. Deciding that this could well be your only possible chance to fulfill this particular fantasy, you smiling from ear to ear you explain "Alright Alkazar, I think I've got my wish all figured out now, so listen up. I wish to become, for lack of a better word, the emperor of space, absolute ruler of a technologically advanced interstellar civilization, with humanity making up a substantial portion of my subjects. You got all that?" you asked.
"I do. And you are certain this is your wish?" Alkazar inquires.
"Positive!" you replied, already imagining all the fun and adventure awaiting you in the new reality Alkazar is about to create for you.
Nodding in acknowledgement of your request, the godlike figure intones Very well, it shall be done!" your consciousness fading as the all powerful energy being vanishes in an intense burst of light. An unknown amount of time latter, you awaken, to discover that your surroundings have greatly changed.