Imagine an individual with software on his unconnected computer, totally isolated from anyone. Within this constraint of cause and effect, the individual is alone. The second question was not that easy. However, I feel that this question has been largely ignored or marginalized, and where addressed, its outcome is assumed rather than proven. To analyze this, I turned to the traditional reasons for outlawing child pornography.
Traditional images abuse the children photographed.
Potential effects they have on other children, who are then abused by people who have looked at the child pornography and somehow felt validated enough by those pictures, or incensed enough to get them to the point where they assault a child. Society has told us it is terrible ever since the creation of such images was possible. The effects they have on the people that chose to view them. From the hypothetical introduced in the first paragraph, I concluded that an isolated individual would not fit into categories 1 or 2. Logically, the software does not injure the children even when creating images of them.