Blog
Can You Predict Motion Without Understanding Physics?
Watch a ball move in seemingly random patterns. Can you predict its next position without knowing the underlying physics?
Core Francisco Park
November 17, 2025
5 min read
physics
chaos
prediction
Learning World Representations: A Complete Research Journey
A comprehensive trace of training transformer models to learn spatial representations of world geography—from initial city visualizations to tackling geodesic distance prediction and binary classification tasks with 1,603 timestamped research events.
Core Francisco Park
November 10, 2025
30 min
transformers
spatial-reasoning
world-models
machine-learning
research-tracking
Think Aloud Analysis of Research
Tracking and visualizing the evolution of ideas, experiments, and insights through interactive research flow diagrams.
Core Francisco Park
September 23, 2025
18 min read
research-tracking
machine-learning
diffusion-models
meta-research
Virtual Async: Simulating Jobs with Virtual Time
An interactive Python simulator for testing async job systems with virtual time. Try the CLI directly in your browser - no installation needed!
Core Francisco Park
September 23, 2025
5 min
simulation
async
python
interactive
cli
Reproducing Algorithmic Collusion by LLMs (Fish et al. 2024) with recent models
Interactive reproduction of algorithmic collusion experiments using a recent model (Gemini 2.5 Flash Lite). 50 simulations and interactive reasoning visualization.
Core Francisco Park
September 14, 2025
2 min
AI
research
economics
game-theory
How Tokenization Works: An Interactive Visualizer
Explore how different tokenizers break down text into tokens with this interactive visualizer. Compare BPE, WordPiece, and character-level tokenization strategies.
Core Francisco Park
August 28, 2025
8 min read
NLP
LLMs
tokenization
Double Pendulum Chaos: Visualizing Sensitive Dependence
Interactive simulation of multiple double pendulums demonstrating chaotic behavior and sensitive dependence on initial conditions.
Core Francisco Park
August 24, 2025
6 min read
physics
chaos
simulation
Gradient Optimizer Comparison: Racing Through Loss Landscapes
Interactive comparison of gradient descent optimizers including SGD, Adam, Muon, and Shampoo navigating 2D loss landscapes.
Core Francisco Park
August 24, 2025
8 min read
optimization
machine learning
deep learning
Visualizing Random Walks
Interactive visualization and exploration of random walks in 2D space with real-time statistics.
Core Francisco Park
August 23, 2025
5 min read
simulation
probability
Welcome to My Blog
An introduction to my personal blog.
Core Francisco Park
August 22, 2025
1 min read
test
AI
LLMs
NLP
async
chaos
cli
deep learning
diffusion-models
economics
game-theory
interactive
machine learning
machine-learning
meta-research
optimization
physics
prediction
probability
python
research
research-tracking
simulation
spatial-reasoning
test
tokenization
transformers
world-models
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