Do you think it would be a good idea for Sophie and Langdon to become romantically involved? Why or why not?

Yes, I feel that Sophie and Langdon would make a good couple. They are both intelligent and work in similar fields, so they have a lot in common. However, I do think that they would have differences of opinion, from time to time, especially where the Holy Grail is concerned. Langdon seems to be more of the logical type, while Sophie functions more by emotional decisions, which could cause minor problems.