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🪐 What’s happening in tech today, October 21, 2025?
The HackerNoon Newsletter brings the HackerNoon homepage straight to your inbox. On this day, Guggenheim Museum opens in New York City in 1959, The Battle of Trafalgar Began in 1805, Alfred Bernhard Nobel is Born in 1833, and we present you with these top quality stories. From How AI Can Help You Avoid Overpaying for Bitcoin Transactions to “Not My Keys, Not My Crypto?” Maybe It’s Time For an Upgrade?, let’s dive right in.
The Dragon Hatchling Learns to Fly: Inside AI’s Next Learning Revolution
By @zhukmax [ 17 Min read ] Exploring Brain-like Dragon Hatchling (BDH) — a new AI model that learns on the fly, adapts like a brain, and challenges the transformer era. Read More.
How AI Can Help You Avoid Overpaying for Bitcoin Transactions
By @blockchainize [ 6 Min read ] AI-driven framework FENN predicts optimal Bitcoin transaction fees in real time, improving accuracy and preventing overpayment or confirmation delays. Read More.
Synchronizing Data from MySQL to PostgreSQL Using Apache SeaTunnel
By @williamguo [ 4 Min read ] A step-by-step walkthrough of building a real-time data pipeline to merge and synchronize MySQL data sources using Apache SeaTunnel. Read More.
“Not My Keys, Not My Crypto?” Maybe It’s Time For an Upgrade?
By @paulquickenden [ 5 Min read ] Is the old crypto mantra of Not my keys, not my crypto actually still relevant? Read More.
From Cloud to Desk: 3 Signs the AI Revolution is Going Local
By @hacker-Antho [ 4 Min read ] when it comes to AI smaller is better Read More.
🧑💻 What happened in your world this week?
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We hope you enjoy this worth of free reading material. Feel free to forward this email to a nerdy friend who'll love you for it.See you on Planet Internet! With love, The HackerNoon Team ✌️
