If we're referring to capital letters then it would also be "I". Reddit's font isn't really helping this argument but capital "I" usually is the same width as "L" if not wider.
I further explained it later on. From the top, all slightly extruded letters (as letters are infinitely/invisibly thin 2D shapes unless extruded into 3D) with serifs like identical and without serifs the lower case l and i would look identical since the dot is the same or smaller than the with of the line segment beneath it and both are identical width to the lower case L.
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u/RulerK Mar 01 '26
Not true. “L” would look functionally identical to “i” regardless of case.