DATA404 — The Story of Data
SIGNAL LIVE · DATA · AI · WEEKLY

The knowledge you needed
was never 404.
You just hadn't found it yet.

DATA404 turns complex data and AI concepts into animated, visual stories. From your first database to LLMs — free, forever, for everyone.

Start learning → Latest news
Chapters live
3
Learning paths
8+
News sources
∞
Always free
// latest articles view all →
// learning paths explore →
ERA 1
Data Engineering
Databases · Warehouses · Modelling · Pipelines
 ERA 2
Cloud & Platforms
Snowflake · Databricks · BigQuery · dbt · Kafka
 ERA 3
AI & Intelligence
LLMs · RAG · Agents · Vector DBs · AI Stack
live news feed open news →
HN
Snowflake announces Arctic Embed 2.0 — beating OpenAI on retrieval benchmarks
4h ago · HackerNews ↑ 612
 r/ML
Gemini 2.0 Flash achieves new MMMU benchmark records
2h ago · r/MachineLearning ↑ 847
 r/data
dbt vs SQLMesh in 2026 — a practical hands-on comparison
6h ago · r/dataengineering ↑ 423
 HN
Apache Iceberg 3.0 released — REST catalog now default
1d ago · HackerNews ↑ 567

© 2026 DATA404 · The story of data, told one concept at a time