Leon Profitlich shares personal experiments in mental models and lifelong learning, covering topics like reducing phone screen time with a minimalist launcher, his marathon training log, and a practical framework for levels of working with AI. Readers get candid, first-person accounts with concrete numbers and a learner's perspective rather than polished expertise.
Website: https://leon-profitlich.ghost.io/
A weekly newsletter that explains one mental model per issue through a detailed historical story, then ties it to creative work. Issues cover topics such as hostile attribution bias, design thinking and the Gestalt law of closure.
A weekly Spanish-language newsletter that pairs a historical story with a practical idea about decision-making, goals and systems, plus a closing quote. Readers get mental models and clearer distinctions drawn from cases like the Mumbai dabbawalas, the Panama Canal and the naming of America.
Short personal essays by a founder and engineer reflecting on mental models, decision-making and personal finance, often through myths and metaphors. Readers get brief, thoughtful reflections on how to reason about data, frameworks and independence.
A show-style newsletter that introduces mental models for making sense of the world through a metaphysical lens. The first episode explains the inside/outside divide between objective reality and subjective experience, and how science and spirituality each handle one side.
One short email a week with hand-picked newsletters from the index. Free, no spam, unsubscribe anytime.
