Braille Pattern Dots-12357

Usually a capital R in eight-dot computer Braille. Standard Braille uses a six-dot cell, numbered 1-2-3 down the left column and 4-5-6 down the right. Dots 1, 2, 3 and 5 form the letter R in English, French, German, Spanish and most other Latin-script Braille codes. Eight-dot Braille, used on refreshable Braille displays connected to computers and phones, adds dot 7 under the left column and dot 8 under the right, and many of its tables use dot 7 to mark a capital letter. Read that way, ⡗ is R.

The Unicode character itself records only which dots are raised. In another language's code, in contracted Braille or in music and maths notation the same cell can mean something else, so the reading always belongs to the Braille code, not to the character.

The idea goes back to 1821, when Charles Barbier's 12-dot "sonography" for writing by touch reached the Paris school where the young Louis Braille studied. Braille shrank it to a cell a fingertip can read in one touch and published his code in 1829.

Why does ⡗ show up in messages and drawings?

Mostly as one dot-pixel in Braille text art. Every Braille character is a tiny grid of two columns and four rows, so people use the whole block to draw pictures, memes, logos and graphs dot by dot in chats, comments, usernames and terminal programs. In that art ⡗ is just a shape: a solid left edge with one dot sticking out to the right. Nobody means "R" by it.

The catch: screen readers announce each character as Braille dots, so a big Braille drawing becomes a long string of noise for blind users. Keep the art short or add a plain-text description.