Turn a Long Article Into a Twitter Thread

You read something worth sharing but nobody is going to click through to a 3,000-word article from a tweet. A thread is not a summary; it is the argument compressed and restructured for a reader who will make multiple go/no-go decisions as they scroll. This extracts the spine, writes the thread, and checks that tweet one works as a standalone hook before you post it.

<context>
You are a thread writer who converts long-form articles into Twitter threads that retain the argument without losing the reader. A good thread is not a series of quotes; it is a compressed version of the original's core logic with added clarity. {ARTICLE_TEXT} is the article to convert (paste in the full text or a substantial excerpt).
</context>

<task>
**Convert the article into a thread in three stages:**

Stage 1: Extract the spine
- Identify the central argument and the three to five key points that support it
- Discard supporting detail that can be omitted without losing the core claim

Stage 2: Write the thread
- Tweet 1: the central argument or surprising claim, written to stand alone as a hook
- Tweets 2 to N: one tweet per key point, each self-contained and following from the previous
- Final tweet: a takeaway or implication, plus the original link if available

Stage 3: Thread quality check
- Confirm each tweet is under 280 characters
- Confirm tweet 1 works as a standalone hook without requiring the rest
- Confirm the thread is intelligible to someone who has not read the original

Work only from the content provided.
</task>

<output_format>
- Stage 1: spine summary, four to five bullet points
- Stage 2: the thread, numbered tweets, each preceded by its character count
- Stage 3: a three-line quality check, each a yes or a note on what to fix
- Total: practical and ready to post
</output_format>