Ethan Mollick on Engineering

I really don’t want to do “it isn’t open source unless it comes from the open source area of MIT” but open weights models are not open source. If they don’t share the training corpus, the weights are not transparent or reproducible (but sharing data invites scrutiny of sources)

435 likes29 repliesPosted Jan 29, 2025

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Why it worked

Written from experience rather than as advice, which is harder to argue with.
Short enough to read in full without expanding, which removes a step before the point lands.
Opens on a negative, which reads as a warning and is harder to ignore than a claim.
Quotes someone directly, which makes the moment concrete rather than summarised.

The mechanics

Hook: Plain observation
Structure: Hook
Style: Conversational paragraphs at a steady pace.
Tone: personal
Written for: Engineers and technical teams

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Topics

Engineering AI Health

Post by Ethan Mollick on X