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Talking to AI Without Exposing Your Data: Lessons from the Privacy Minefield
Re:You Cannot Run a Bank on AI Software on Monday September 01, 2025 @03:33AM (#45090386)
You Cannot Run a Bank on AI Software
A in-depth look at what happens when the price of cryptocurrencies go out of sync on two local exchanges. (And how you can make money from these price differences)

Show HN: Live BTC Arbitrage Monitor (South Africa vs. Global)

https://www.zarbitrage.co.za

We built [ZArbitrage.co.za](https://zarbitrage.co.za) to track the live price gap between Bitcoin in South Africa and major international markets.South Africa often trades at a premium (sometimes double-digit %), and while many people know about the "ZAR premium", there hasn’t been a simple, transparent dashboard showing it clearly over time.The opportunity is also only available to South...

( Read More... | no comments | on HN )
Re:GPT-5 leaked system prompt on Friday August 08, 2025 @01:35AM (#44833786)
Also, it returns song lyrics all the time for me.
Re:GPT-5 leaked system prompt on Friday August 08, 2025 @01:34AM (#44833778)
Extremely accurate. Each and every single OpenAI employee just got a 1.5 Million USD Bonus. They must be printing money!
Re:Ask HN: What are you working on? (July 2025) on Monday July 28, 2025 @10:14AM (#44711092)
Good question. How does your drone know the difference between a fly and a mosquito (and a human)?
Re:Ask HN: What are you working on? (July 2025) on Monday July 28, 2025 @10:13AM (#44711083)
Very cool idea. What is your estimated price? This could work well in many African countries if the price is low.
Re:Ask HN: What Are You Working On? (June 2025) on Sunday June 29, 2025 @05:41PM (#44416689)
Just launched the full history of South African Arbitrage using beautiful graphs for anyone to explore here: https://www.zarbitrage.co.za