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b"Phil Zimmermann is the creator of PGP & the cryptographer who made it safe to publish cryptography projects on the internet. In this episode, Mr. Zimmermann talks about Bitcoin, his opinion on various cryptography projects & his friendship with Hal Finney. This episode is sponsored by Wasabi wallet, Cryptosteel, Satodime, and ShopInBit. Time stamps: The cypherpunk movement in the 1990s [00:02:47] Discussion about Phil Zimmermann's involvement with the cypherpunk scene and his ideological alignment with their policies. The motivation behind making PGP open source [00:07:30] Exploration of Phil Zimmermann's reasons for making PGP open source, including the desire for extensive peer review and the benefits of strong encryption software. The impact of PGP on the development of cryptography protocols [00:10:47] Phil Zimmermann discusses how the publication of PGP, including its source code, taught many people how to do public key cryptography in software and contributed to the emergence of various protocols. Hal Finney and Tom Hanks [00:13:11] Discussion about the potential casting of Tom Hanks to play Hal Finney in a movie. Hal Finney's Role in PGP Development [00:13:36] Exploration of Hal Finney's contribution to the development of PGP and the trust model implementation. Proof of Work and Penny Black Project [00:14:20] Explanation of proof of work and its use in solving the double spending problem and reducing email spam through the Penny Black project. 17:48 \\u2013 Did Phil Zimmermann ever think about inventing Bitcoin? 19:13 \\u2013 Silent Phone. 20:40 \\u2013 Encryption is fast. 22:45 \\u2013 When did Phil Zimmermann hear about Bitcoin for the first time? 24:07 \\u2013 Is Phil Zimmermann proud of enabling Bitcoin? 24:44 \\u2013 Phil Zimmermann's disappointment about Bitcoin. Improving Bitcoin and Carbon Footprint [00:26:39] Discussion on ideas for improving Bitcoin, particularly in relation to reducing its carbon footprint. David Chaum's Ideas and Patents [00:29:47] Conversation about David Chaum's ideas and patents, and their impact on the acceptance and development of electronic cash, including Bitcoin. End-to-End Encryption and National Security [00:32:49] Exploration of the importance of end-to-end encryption for preserving democracy and national security, particularly in the context of networks controlled by potentially adversarial entities like China."