question:  Why did the narrator think Doc held the key to becoming powerful?
context: Confidence Game By JIM HARMON Illustrated by EPSTEIN [Transcriber's Note: This etext was produced from Galaxy Science Fiction June 1957. I admit it: I didn't know if I was coming or going—but I know that if I stuck to the old man, I was a comer ... even if he was a goner! The golden Moon and the silver ship, symbols of greed. "Sure," the man agreed severely, prying a little worriedly at Doc's arthritic fingers that were clamped on his collar. I came alongside and carefully started to lever the old man loose, one finger at a time. If a half dozen winos in Seattle hadn't helped me get them loose, Doc and I would have been wanted for the murder of a North American Mountie. "'Memory Jump,' you mean. All my great-grandfathers have it. I told the human no, thanks, and walked Doc toward the flophouse three doors down. It had happened a few times right after I first found him, but now it was worse. The clerk's hand fell on the coin and slid it off into the unknown before I could move, what with holding up Doc. I was bent double, but I got from the floor to the chair and found my notebook and orb-point in my hands. I found I couldn't focus both my mind and my eyes through the electric flashes of agony, so I concentrated on Doc's voice and trusted my hands would follow their habit pattern and construct the symbols for his words. They told everything I needed to know to become the most powerful man in the Solar Federation. When I got to thinking it was just a dream and that I was dragging this old man around North America for nothing, I remembered who he was. I remembered that he was somebody very important whose name and work I had once known, even if now I knew him only as Doc. Pain was a pendulum within me, swinging from low throbbing bass to high screaming tenor.
output:  His bond with Doc meant he had, in a way, already experienced the result of what he was developing
options:  Doc's inventions would allow them to take over the world  His bond with Doc meant he had, in a way, already experienced the result of what he was developing  Doc had promised him the technology to reach the Moon, and this would be worth a lot of money  He knew Doc would be able to find a way to break addiction, improving life for everyone