Tales from the Dawn #3: "A Question of Life" (Hermes)

[Iscah]

if he was actually showing the true effects of the Sundering, the Ryne copies he made as an example should have been half the height of the original Ryne, at the very least.

Scientific detour – if we're actually physically taking all the atoms in a person and arranging it into two "scale models" of the person (half the volume), they're going to be more around 80% of the height of the original. (Edit to be clear: 80% as opposed to 50% height suggested by Brinne, which would be an eighth of the volume.)

(Or perhaps the same size but extremely un-dense, and then they evolve and collapse down over a few generations or something.)

Incidentally, a 14x increase in volume would make someone about 2.5 times the height.

On the other hand, people of the Source aren't any bigger than those from the shards, just more dense.