Full Idea
Extreme solipsism only considers present experiences, but more relaxed solipsism may include past and possible future experiences.
Gist of Idea
Extreme solipsism only concerns current experience, but it might include past and future
Source
Jonathan Dancy (Intro to Contemporary Epistemology [1985], 9.5)
Book Reference
Dancy,Jonathan: 'Introduction to Contemporary Epistemology' [Blackwell 1985], p.136