Kernrechtsfrage
Whether the respondent owed CHF 2 million for alleged construction cost overruns.
Extrahierter Entscheid
The court did not examine the merits because the appeal failed to meet the substantiation requirements; the challenged judgment stood.
Extrahierte Begründung
The appellant merely advanced appellatory criticism and did not specifically show why the lower court's alternative reasoning on lack of reliance and implied consent was arbitrary or unlawful. As that unchallenged reasoning independently supported the judgment, there was no need to address the cost-overrun evidence issues.