Wikipedia
Mindspan
Mindspan is a collection of science fiction stories by Gordon R. Dickson. It was first published by Baen Books in 1986. Most of the stories originally appeared in the magazines Fantasy and Science Fiction, Venture, Startling Stories, Galaxy Science Fiction, Analog Science Fiction and Fact and Worlds of Tomorrow.
Stories 4 to 8 were republished in The Magnificent Wilf (1995).