Most people read top to bottom, left to right so the first thing they would browse would be the Clinical Reasoning. This makes no sense to me (Josh originally expressed this on Zulip) since these are the newest and least comprehensible (i.e. most abstract) resources for a novice reader to FHIR. It stands to reason that it should be rearranged so the most comprehensible and basic knowledge artifacts ( i.e Patient, foundation) are more to the top and right. and I would make it a collage of boxes, because It is not clear to me what is the difference between a box and and a bar.

Foundation, Administration, Security

Clinical, Diagnostics, Medications,

Implementor Support, Terminology, WorkFlow

Conformance, Financial, Clinical Reasoning, Ontology