99- Quantum Computing vs Bitcoin: Real Threat or FUD? | Bartosz Naskręcki Explains #bitcoin

Are quantum computers an existential threat to Bitcoin, or is the fear mostly FUD?

In this episode, Bartosz Naskręcki, Vice-Dean of Mathematics and Computer Science at Adam Mickiewicz University, breaks down how Bitcoin’s cryptography actually works, the math behind SHA-256, why SHA-1 failed, and what quantum computing can and cannot realistically do to Bitcoin today — or the foreseeable future.
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00:00 – Introduction and Episode Overview
02:30 – What Hash Functions Are and Why They Matter
06:39 – The Avalanche Effect Explained
12:09 – Why Bitcoin Uses SHA-256
19:48 – Why GitHub Still Uses SHA-1
25:46 – How SHA-256 Improved on SHA-1
34:54 – Quantum Computing Breakthroughs and Bitcoin Security
49:09 – What Quantum Computers Actually Are
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