For 10 points, name this author known for his science fiction stories like "The Last Question" and his Foundation series.
Several of this author's short stories are narrated by a former intelligence agent named Griswold, including one in which Griswold finds a German spy because of that man's awareness of other lyrics to the national anthem. Other of his short stories rely on such obscure facts as other verses to "Yankee Doodle" and how an Exxon logo resembles a Cross of Lorraine. This man created Geoffrey Avalon and Manny Rubin, club members who are served by the superintelligent waiter Henry. This creator of the Union Club and Black Widower series wrote a story in which characters ponder how to decrease the net amount of entropy, ending with a computer proclaiming "LET THERE BE LIGHT." For 10 points, name this author known for his science fiction stories like "The Last Question" and his Foundation series.
Several of this author's short stories are narrated by a former intelligence agent named Griswold, including one in which Griswold finds a German spy because of that man's awareness of other lyrics to the national anthem.
Isaac Asimov