Key legal question
Whether the federal appeal against the cantonal remand decision was admissible under Art. 93 BGG.
Extracted holding
The remand decision was an interim decision, and the strict conditions for immediate appeal were not met.
Extracted reasoning
Annulment of the remand order would not avoid significant time or cost for extensive evidence; no particularly broad evidentiary measures were pending. Any challenge to the method of disability assessment could be raised against the final decision.