Write 10 subject line variants for this email.

**Email summary:**
[2-3 sentences describing what the email covers and its key takeaway]

**Audience:**
[Who receives this email]

Generate 10 subject lines, each using a DIFFERENT psychological hook:

1. **Curiosity gap** — implies something surprising without revealing it
2. **Specific number** — uses a data point or quantity
3. **Direct benefit** — states exactly what the reader gains
4. **Pattern interrupt** — breaks expectations, unusual phrasing
5. **Social proof** — references what others are doing
6. **Question** — asks something the reader wants answered
7. **Urgency/timeliness** — ties to a current moment or deadline
8. **Contrarian** — challenges a common belief
9. **Personal/conversational** — sounds like a text from a friend
10. **Story tease** — hints at a narrative

Rules:
- Under 50 characters each (mobile-friendly)
- No ALL CAPS words
- No exclamation marks
- No "you won't believe" or "this one weird trick" clickbait
- No emoji unless my brand regularly uses them
- Label each with its hook type