>From the standpoint of a historian in the future, or that of a Disembodied Floating Head in the present, liberalism and marxism and fascism will probably actually appear to be variants of a single set of ideas, much as in retrospect the religious wars of the 1600s appear to us today as a squabble between two insignificantly varying sects, even though it certainly wasn't experienced that way by the participants.
Which only goes to show that historians of the future or disembodied floating heads (Laputans?) are not reliable guides.