Editing All caps (section)

===Ambiguities===
{{unreferenced section|date=January 2015}}
Besides the aforementioned speed of reading, all caps is prone to [[Character (symbol)|character]]-based ambiguities.

Namely, the upper-case letters are globally simpler than their lower-case counterpart. For example, they lack [[Ascender (typography)|ascenders]] and [[descender]]s.
Since they are built from fewer positional and building elements (e.g. a smaller grid pertaining to minimalist digital fonts), they are more fragile to small changes.

These variations, generally involuntary but sometimes induced on purpose, are caused by a misinterpretation (the information is transferred) or by a deterioration (the data is lost, in the analysis wording). They can occur horizontally and/or vertically, while misreading (without this extra effort or time), or during a delicate [[Optical character recognition#Text recognition|scanning of characters]] (from a damaged image that needs further contextual text correction).

Depending on the [[typeface]], these similarities accidentally create various duplicates (even quite briefly and without realizing it when reading).
E.g. H/A, F/E or I/T by adding a bar; P/R, O/Q, even C/G from similar errors; V/U, D/O, even B/S while rounding the shape; and more deformations implying mixings.

Adding digits in all caps styled texts may multiply these confusions, which is one aim of [[Leet]] (intentional pseudo duplicates) and can provide simple means of [[Steganography|concealing messages]] (often numbers).