Kernrechtsfrage
Whether the insured had an invalidating mental impairment entitling him to AI benefits
Extrahierter Entscheid
The court held that the insured had not shown an invalidating psychiatric impairment; the file supported primary polytoxicomania, not a legally relevant psychical disorder.
Extrahierte Begründung
The Federal Court accepted the cantonal court's preference for the expert report because it was more detailed and convincing than the contrary medical opinions; the criticism merely opposed another appreciation of evidence.