LinkedIn’s retrieval system literally uses your profile as input to a 3-billion-parameter language model, making profile optimization a form of prompt engineering with compounding algorithmic returns. Somewhere in a cluster of 72 H100 GPUs, a fine-tuned LLaMA-3 model is reading your LinkedIn profile right now. Not skimming it. Not glancing at your headline. Reading the … Read more

LinkedIn

You’re Not Matching Keywords. You’re Positioning Yourself in Concept-Space

Marketing Baby

LinkedIn replaced keyword matching with LLM-generated embeddings, which means every word you write nudges your position in a 3,072-dimensional concept-space that determines who sees your content. A B2B marketer rewrites her LinkedIn headline. Swaps “Digital Marketing Manager” for “Demand Generation | B2B SaaS | ABM.” Adds a few trending hashtags to her posts. Sprinkles “revenue” … Read more

LinkedIn

The LinkedIn Cold Start Problem (And Why New Accounts Have a Hidden Advantage)

Marketing Baby

LinkedIn’s new AI retrieval system gives low-connection accounts 3-4x larger performance gains than established ones, turning a well-written profile into the fastest path out of obscurity. Every LinkedIn strategy post starts the same way: build your network first. Get to 500 connections. Engage consistently for months before you expect results. The implication is clear: new … Read more

LinkedIn

Content marketing

The 30-Day Cliff: Why Your Best LinkedIn Post Disappears

Marketing Baby

LinkedIn’s content retrieval system enforces a hard 30-day window: after that, even your best-performing post is removed from the index entirely, making consistent publishing a structural requirement rather than a best practice. Something strange happens to LinkedIn posts around day 31. A post that was still generating comments, still getting shared, still doing real work … Read more