https://www.thesidgoyal.com/tags/smart-brain/ Recent content in Smart, Brain on Siddarth Goyal's Blog Hugo -- 0.147.2 en Siddarth Goyal © 2025 Thu, 18 Jun 2026 00:00:00 +0000 https://www.thesidgoyal.com/posts/2026/06/websites_to_make_you_smart/ Thu, 18 Jun 2026 00:00:00 +0000 https://www.thesidgoyal.com/posts/2026/06/websites_to_make_you_smart/ <p>Here’s a categorized list with direct links:</p> <h2 id="writing--articulation--flow">Writing / Articulation / Flow</h2> <table> <thead> <tr> <th>Website</th> <th>Link</th> <th>Best for</th> </tr> </thead> <tbody> <tr> <td>Dangerous Writing App</td> <td><a href="https://www.squibler.io/dangerous-writing-prompt-app/">Open</a></td> <td>Writing without overthinking; anti-perfectionism. ([squibler.io][1])</td> </tr> <tr> <td>750 Words</td> <td><a href="https://750words.com/">Open</a></td> <td>Daily private journaling habit</td> </tr> <tr> <td>OneLook Thesaurus</td> <td><a href="https://www.onelook.com/thesaurus/">Open</a></td> <td>Better vocabulary and word choice</td> </tr> </tbody> </table> <h2 id="cognitive-biases--rational-thinking">Cognitive Biases / Rational Thinking</h2> <table> <thead> <tr> <th>Website</th> <th>Link</th> <th>Best for</th> </tr> </thead> <tbody> <tr> <td>The Decision Lab — Biases</td> <td><a href="https://thedecisionlab.com/biases">Open</a></td> <td>Cognitive biases and behavioural science. (<a href="https://thedecisionlab.com/biases?utm_source=chatgpt.com" title="List of Cognitive Biases and Heuristics">The Decision Lab</a>)</td> </tr> <tr> <td>Clearer Thinking</td> <td><a href="https://www.clearerthinking.org/">Open</a></td> <td>Free tools for decision-making, logic, self-awareness. (<a href="https://www.clearerthinking.org/?utm_source=chatgpt.com" title="ClearerThinking.org | Scientific Personality Test &amp; Online Tools">Clearer Thinking</a>)</td> </tr> <tr> <td>LessWrong Rationality A–Z</td> <td><a href="https://www.lesswrong.com/rationality">Open</a></td> <td>Deep rationality, belief-checking, reasoning errors. (<a href="https://www.lesswrong.com/rationality" title="Rationality: A-Z — LessWrong">lesswrong.com</a>)</td> </tr> <tr> <td>Farnam Street Mental Models</td> <td><a href="https://fs.blog/mental-models/">Open</a></td> <td>Mental models for better decisions. (<a href="https://fs.blog/mental-models/" title="Mental Models: The Best Way to Make Intelligent Decisions (~100 Models Explained)">Farnam Street</a>)</td> </tr> </tbody> </table> <h2 id="philosophy--ethics--moral-reasoning">Philosophy / Ethics / Moral Reasoning</h2> <table> <thead> <tr> <th>Website</th> <th>Link</th> <th>Best for</th> </tr> </thead> <tbody> <tr> <td>Philosophy Experiments</td> <td><a href="https://www.philosophyexperiments.com/">Open</a></td> <td>Moral dilemmas, logic puzzles, philosophy tests. (<a href="https://www.philosophyexperiments.com/" title="Philosophy Experiments">Philosophy Experiments</a>)</td> </tr> <tr> <td>Moral Machine</td> <td><a href="https://www.moralmachine.net/">Open</a></td> <td>Trolley-problem style ethical decisions. (<a href="https://www.moralmachine.net/" title="Moral Machine">Moral Machine</a>)</td> </tr> <tr> <td>YourMorals</td> <td><a href="https://www.yourmorals.org/">Open</a></td> <td>Moral psychology and values tests. (<a href="https://www.yourmorals.org/" title="YourMorals">yourmorals.org</a>)</td> </tr> </tbody> </table> <h2 id="logic--math--coding-puzzles">Logic / Math / Coding Puzzles</h2> <table> <thead> <tr> <th>Website</th> <th>Link</th> <th>Best for</th> </tr> </thead> <tbody> <tr> <td>Brilliant</td> <td><a href="https://brilliant.org/">Open</a></td> <td>Interactive math, logic, CS, probability. (<a href="https://brilliant.org/" title="Brilliant | Learn by doing">brilliant.org</a>)</td> </tr> <tr> <td>Project Euler</td> <td><a href="https://projecteuler.net/">Open</a></td> <td>Math + programming puzzles. (<a href="https://projecteuler.net/" title="About - Project Euler">projecteuler.net</a>)</td> </tr> <tr> <td>Advent of Code</td> <td><a href="https://adventofcode.com/">Open</a></td> <td>Fun programming challenges. (<a href="https://adventofcode.com/" title="Advent of Code 2025">adventofcode.com</a>)</td> </tr> <tr> <td>Simon Tatham’s Puzzle Collection</td> <td><a href="https://www.chiark.greenend.org.uk/~sgtatham/puzzles/">Open</a></td> <td>Pure logic puzzles. (<a href="https://www.chiark.greenend.org.uk/~sgtatham/puzzles/" title="Simon Tatham&#39;s Portable Puzzle Collection">chiark.greenend.org.uk</a>)</td> </tr> </tbody> </table> <h2 id="systems-thinking--interactive-explorables">Systems Thinking / Interactive Explorables</h2> <table> <thead> <tr> <th>Website</th> <th>Link</th> <th>Best for</th> </tr> </thead> <tbody> <tr> <td>Complexity Explorables</td> <td><a href="https://www.complexity-explorables.org/">Open</a></td> <td>Systems, networks, emergence, simulations. (<a href="https://www.complexity-explorables.org/" title="Complexity Explorables | Complexity Explorables">complexity-explorables.org</a>)</td> </tr> <tr> <td>Explorable Explanations</td> <td><a href="https://explorabl.es/">Open</a></td> <td>Learning through interactive simulations. (<a href="https://explorabl.es/" title="Explorable Explanations">explorabl.es</a>)</td> </tr> <tr> <td>Nicky Case</td> <td><a href="https://ncase.me/">Open</a></td> <td>Game theory, society, trust, anxiety, systems. (<a href="https://ncase.me/" title="It&#39;s Nicky Case!">ncase.me</a>)</td> </tr> </tbody> </table> <h2 id="forecasting--probabilistic-thinking">Forecasting / Probabilistic Thinking</h2> <table> <thead> <tr> <th>Website</th> <th>Link</th> <th>Best for</th> </tr> </thead> <tbody> <tr> <td>Good Judgment Open</td> <td><a href="https://www.gjopen.com/">Open</a></td> <td>Predicting real-world events. ([gjopen.com][16])</td> </tr> <tr> <td>Metaculus</td> <td><a href="https://www.metaculus.com/">Open</a></td> <td>Forecasting, probability, future events. (<a href="https://www.metaculus.com/" title="Metaculus">metaculus.com</a>)</td> </tr> </tbody> </table> <h2 id="daily-brain-games--pattern-recognition">Daily Brain Games / Pattern Recognition</h2> <table> <thead> <tr> <th>Website</th> <th>Link</th> <th>Best for</th> </tr> </thead> <tbody> <tr> <td>NYT Games</td> <td><a href="https://www.nytimes.com/games">Open</a></td> <td>Wordle, Connections, Crossword, Spelling Bee. (<a href="https://play.google.com/store/apps/details?hl=en_IN&amp;id=com.nytimes.crossword&amp;utm_source=chatgpt.com" title="NYT Games: Wordle &amp; Crossword – Apps on ...">Google Play</a>)</td> </tr> <tr> <td>Lichess Puzzles</td> <td><a href="https://lichess.org/training">Open</a></td> <td>Chess tactics and calculation. (<a href="https://lichess.org/training" title="Puzzles • lichess.org">lichess.org</a>)</td> </tr> <tr> <td>Set with Friends</td> <td><a href="https://setwithfriends.com/">Open</a></td> <td>Pattern recognition and speed. (<a href="https://setwithfriends.com/?utm_source=chatgpt.com" title="Set with Friends">setwithfriends.com</a>)</td> </tr> <tr> <td>Daily SET Puzzle</td> <td><a href="https://anniehu.com/set/">Open</a></td> <td>Solo SET pattern puzzles. (<a href="https://anniehu.com/set/?utm_source=chatgpt.com" title="Daily Set Puzzle - Annie Grace Hu">anniehu.com</a>)</td> </tr> </tbody> </table> <p>My strongest picks for you: <strong>Dangerous Writing App</strong>, <strong>Clearer Thinking</strong>, <strong>Philosophy Experiments</strong>, <strong>Brilliant</strong>, <strong>Project Euler</strong>, <strong>Complexity Explorables</strong>, and <strong>Good Judgment Open</strong>.</p>