Gibson was an only child. His mother liked to travel internationally, and she took him with her. At the age of 7 he decided that his life’s goal would be to visit every country in the world at least once. Ultimately this challenged the definitions of visit and country, but he stuck with the mission, forgoing any chance of a sustained career and subsisting on a modest inheritance. By his own account, along the way he dabbled in some famous mysteries—the end of the Mayan civilization in the jungles of Guatemala and Belize, the Tunguska meteor explosion in eastern Siberia, and the location of the Ark of the Covenant in the mountains of Ethiopia. He printed up cards identifying himself: adventurer. explorer. truth seeker.