unknown
Nothing visibly changed because there is almost nothing visible to compare. The August 7, 2020 and March 1, 2021 snapshots both show Wayback wrapper text rather than EXO Biologics' actual site copy, so there is no usable mission statement, theory of change, or belief language in the record provided. What stayed stable is the evidence problem. In both entries, the source exists but the substance does not. That means any claim about how the company's beliefs evolved over this period would be invented, which is not analysis; it is fan fiction. So the honest read is boring: no documented belief evolution can be established from these snapshots. The gap may come from incomplete captures rather than from company silence, but with the material here, the only defensible conclusion is that the evidence is too thin to show change or continuity in any meaningful way.