Email Subject Line Generator

Generate 10 high-converting email subject lines for an email about [EMAIL_TOPIC]. The goal is [GOAL] (e.g., open rate, clicks, conversions). Target audience: [AUDIENCE]. Include: 3 curiosity-based, 3 benefit-driven, 2 urgency/scarcity, and 2 personalization-based subject lines. For each, predict open rate impact and explain the psychological trigger used.