If you want a quick and easy way to compress the visual space taken up by text then we have several existing examples to choose from. The most trivial is omiss

If you want a quick and easy way to compress the visual space taken up by text then we have several existing examples to choose from. The most trivial is omission of vowels, instead relying on context or vowel marks (or some combination). Wrds r srprsngl lgbl wtht vwls. Anotherisomissionofspaces. Lots of western (and other) scripts have been written these ways in the past. Neither can be said to have evolved to make text easier to write! Including the vowels is more difficult to write and both are more costly because they take up more space, which means larger tablets or more animal skin and ink required. We settled on including vowels and word spacing to make text more legible, so I'm not sure where the author's claim about latin working the way it does to benefit writing comes from. If the OP wants to claim letters like b/d/p/q, m/n, w/v/u, etc are to the benefit of writers OK but "dotsies" is even worse in lacking distinct shapes. Humans like symmetry and patterns so it seems far more likely some letters are variations on a pattern or mirror images because it is visually pleasing or easy to stamp new letters out of existing known shapes. If you think about it a/b/c/d/e/g/o/p/q are arguably variations on the same pattern, with g -> j, and j -> i following.