Completely Science [better] -

A hypothesis to lead the way, Through trials of night and errors of day. And when the final fact is known, A seed of truth is purely sown.

Dark matter explains galaxy rotation curves and gravitational lensing. But no one has directly detected a dark matter particle. The hypothesis is strongly scientific, but incomplete. If a decade of next-generation detectors finds nothing, dark matter may be falsified—which is good science. But “completely science” requires the detection. completely science

: Discussions often explore whether the line between "completely science" and "pseudoscience" has become blurred. 4. Interactive Learning A hypothesis to lead the way, Through trials