— What's an ideal font size for footnotes and is there any reason the footnote font needs to be smaller?
— For a footnote, for it to be used in-text, the writer found some content necessary to include with the manuscript, however less initially important than the main copy. Therefore, it is necessary for the main copy to have more hierarchy than the footnote.
Developments in printing technology, ink, and paper making, made it possible to print letterforms of high contrast and delicate hairlines.
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