You're right there. It's amusing to me because I suspect it is difficult or impossible to meaningfully define "obvious". In my head, it matches "cryptozoology",

You're right there. It's amusing to me because I suspect it is difficult or impossible to meaningfully define "obvious". In my head, it matches "cryptozoology", where the "crypto" denotation kind of includes "pseudoscience". But also "hidden shape" has a loose implication of "hidden equivalent shape".