Ten years might have passed, but Hal Finney's impact on Bitcoin feels more present than ever. Today I found myself thinking about what he accomplished and the sheer determination it took to keep pushing forward even when everything became impossible.

For those who might not know the full story, Hal Finney was one of those rare people who understood cryptography deeply before Bitcoin even existed. He spent years working on public-key cryptography at PGP Corporation, then dove into the cypherpunks community where the real innovation was happening. In 2004, he built the world's first reusable proof-of-work system—basically laying the groundwork for everything Bitcoin would become.

But here's what gets me: when Satoshi Nakamoto released Bitcoin in 2009, Hal didn't just read the whitepaper and move on. He was there from day one. He received the first Bitcoin transaction ever sent by Satoshi. He helped test the protocol. His tweet 'Running bitcoin' became one of those legendary moments in crypto history that people still reference today.

Then came the ALS diagnosis in 2009. Most people would have stepped back. Not Hal Finney. He literally used eye-tracking software to keep coding as his body failed him. In 2013, he wrote about being paralyzed, fed through tubes, needing assistance to breathe—and somehow still found peace in his work and what he'd built.

That's the part that really sticks with me about Hal Finney. It wasn't just his technical brilliance or his early vision. It was the refusal to give up. He knew his legacy would outlive him, and he was comfortable with that. That kind of resilience shaped the entire foundation of what Bitcoin became.

Seems fitting to remember someone like that today. His work didn't just change technology—it changed how we think about what's possible.