Comment by harpersealtako

An example I can think of off the top of my head is Luis Alvarez, the nobel physicist who came up with the asteroid impact theory of dinosaur extinction. The geology and paleontology community shunned him until the 90s when the Chicxulub crater was discovered (though geology is historically infamous for this, to the extent that nearly every important paradigm shift in geology was made by non-geologist outsiders who faced ridicule for their theories)