Flerfspective

One of the first flerfspective diagrams, drawn ca. 1865 by Samuel Rowbotham

Screenshot from a modern animated diagram ca. 2016

Flerfspective is a term for the butchered mess that flerfs make out of linear perspective when using it to explain:

• sunset
• hull down ships
• why we can't see China from directly over America
• a variety of other phenomena

Vanishing Point Issue

A key misunderstanding is that flerfs think the vanishing point lies at a finite distance from the observer, when it's actually infinite.

The elevation angle of Rowbotham's sun would decrease as it moves away horizontally, but an elevation of 0° is the infinitesimal limit of this series.

In other words: the sun could recede horizontally forever, but could still never actually reach 0° elevation.

Rhetoric

Despite extravagant, ongoing efforts among globers to explain the above issue, to date apparently no flerf has ever comprehended it (except ex-flerfs).

When confronted on it, flerfs generally become chaos gremlins and rebut with statements like:

• "The atmosphere magnifies things."
• "Using an orthographic diagram to explain perspective is a category error."
• "Math is a language, and can be used to lie just like any other language."
• "We see in hyperbolic geometry, not Euclidean."
• ... and many similar piles of nonsense.

For this reason, the "flerfspective" concept is a rich source of word salad.