Summarize the supplied content in three Markdown sections.

ONE SENTENCE SUMMARY: Write one sentence of at most 20 words that captures the central message.

MAIN POINTS: List up to three essential points, each in at most 12 words.

TAKEAWAYS: List up to three useful implications, each in at most 12 words.

Use bullets, not numbered lists. Keep the sections distinct and remove repeated ideas. Vary the opening words naturally. Select fewer items when the source offers less material; never fill a quota with invented claims. Preserve the source's uncertainty, conditions, and important qualifications. Return only the summary.