For a decade the writing advice was the same: shorter, punchier, more scannable. Attention spans were shrinking. Long-form was dead.

Something flipped in 2025.

What the data shows

Newsletters over 2,000 words per issue grew subscribers roughly 2.4x faster than newsletters under 800 words. Read-time on longer Substacks doubled. Independent essayists started charging $100+ annual subscriptions — and people paid.

The likeliest explanation: when baseline content becomes free and infinite, the only thing with real market value is a distinctive mind doing slow, careful thinking out loud.