Points are a weird and inconsistent unit of measure

A deep dive into why LaTeX and Inkscape use different definitions of a 'point' as a unit of measure. LaTeX uses 1/72.27 inches (the TeX point, tweaked by Donald Knuth for cleaner arithmetic), while Inkscape uses 1/72 inches (the PostScript/CSS point, originating from Apple's LaserWriter). The historical trail traces back to inconsistent 19th-century American typographic standards, PostScript's deliberate rounding, and how that rounding propagated through CSS, SVG, and SVG editors. The difference is only 0.4% but causes real layout mismatches when mixing the two systems.