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PODCAST

21 in 21

Hosted by Haley Berkoe

Haley Berkoe asks some of the biggest names in bitcoin and Silicon Valley 21 questions in 21 minutes, from the personalities you know and love to tech’s unsung heroes. A new episode drops when someone stops by Presidio Bitcoin. Reach out if you are or will be in the area and are interested in being on the show. presidiobitcoin.substack.com

technology

All Episodes

24:18

21 in 21: Joe Carlo on How Bitcoin Changed Pink Owl...

21 in 21 ·

2025/10/30

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25:28

21 in 21: Kyle Olney

21 in 21 ·

2025/10/28

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22:45

21 in 21: Nick Slaney

21 in 21 ·

2025/10/21

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25:43

21 in 21: Erik Cativo

21 in 21 ·

2025/10/15

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23:42

21 in 21: Kyle Fletcher

21 in 21 ·

2025/10/02

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24:34

21 in 21: Christoph Ono

21 in 21 ·

2025/09/24

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24:45

21 in 21: Conor Okus

21 in 21 ·

2025/09/05

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25:01

21 in 21: Mogashni Naidoo

21 in 21 ·

2025/08/28

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26:11

21 in 21: Matthew Pines

21 in 21 ·

2025/08/19

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23:35

21 in 21: Tadge Dryja

21 in 21 ·

2025/08/12

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22:45

21 in 21: Jameson Lopp

21 in 21 ·

2025/08/07

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23:32

21 in 21: Alex Pruden

21 in 21 ·

2025/08/05

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24:16

21 in 21: Alex Gladstein

21 in 21 ·

2025/07/31

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22:21

21 in 21: Ryan Loomba

21 in 21 ·

2025/07/15

Haley Berkoe sat down with Ryan Loomba, a Bitcoin Engineer at Block. Ryan shares his journey from early startup life to working across Square, Cash App, and Block’s Bitcoin team. They get into the weeds on bitcoin custody, the power of open-source, how Lightning is rolling out in the real world, and why AI might be the next big unlock for developers.FOLLOW:Ryan Loomba: https://x.com/RLoombsBlock: https://x.com/blocks, https://engineering.block.xyz/blog/, https://block.xyz/careers/jobsHaley Berkoe:

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25:23

21 in 21: Alex Zukauskas

21 in 21 ·

2025/07/10

In this episode, Haley Berkoe interviews Alex Zukauskas, the Presidio Bitcoin Lead. Alex shares his background, discusses past and upcoming events, and explains why Presidio Bitcoin is the best place to be. He will be joining the show quarterly to keep everyone updated on all the exciting developments at Presidio Bitcoin.Episode Highlights:* Time flies, it’s been 7 months since Alex took the job, and 4 months since the launch of Presidio Bitcoin.* Recurring monthly events open to the public:

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19:52

21 in 21: Clara Shikhelman

21 in 21 ·

2025/07/02

Haley Berkoe met with Clara Shikhelman, the Head of Research at Chaincode Labs. Clara has been researching complex mathematical problems for nearly a decade and is currently focusing on the Lightning Network and bitcoin in the age of post-quantum computing.Episode highlights include:* Her goals with the quantum computing report: provide an overview of the current status and future direction, reduce FUD, and clarify what actually matters.* A call for cryptographers to engage with bitcoin and read the

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21:53

21 in 21: Ben Carman

21 in 21 ·

2025/06/26

Haley Berkoe met with Ben Carman, who recently joined the Spiral team to work on the Lightning Development Kit and LDK-related projects. Previously he was at Taproot Wizards and Mutiny, a non-custodial Lightning wallet.Episode highlights include:- Ben’s new focus areas at Spiral.- His bitcoin journey, which started with a comedy podcast and Andreas Antonopoulos's videos.- Ben’s concerns about the bitcoin community's lack of emphasis on real-world payments.- He stresses the need for next-generation

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23:38

21 in 21: Stephen DeLorme

21 in 21 ·

2025/06/05

In this episode, Haley Berkoe sat down with Stephen DeLorme, a Product Designer at Voltage and co-founder of ATL BitLab, a bitcoin-focused hackerspace in Atlanta.Episode Highlights:* Battle of the Mine-hackers starts this Saturday, June 7th, at ATL BitLab! Remote participation is welcome: https://minehackers.atlbitlab.com/* Centralization risks with mining pools, hardware manufacturing, and block template construction* Current focus areas at Voltage along with fun side projects like Bolt 12 Zaps*

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21:46

21 in 21: Ella Hough

21 in 21 ·

2025/06/03

Haley Berkoe met with Ella Hough, who has dedicated significant time to educating younger generations about bitcoin. She just completed her bitcoin-focused study at Cornell University, co-founded the Bitcoin Students Network, and led the Cornell Bitcoin Club, which is now transitioning to new leadership. Additionally, she is conducting a global study examining bitcoin adoption and financial freedom.EPISODE HIGHLIGHTS:* How she went about pursuing bitcoin as an independent major, focusing on its

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25:22

21 in 21: Laolu Osuntokun

21 in 21 ·

2025/05/24

Haley Berkoe interviewed Laolu Osuntokun, also known as Roasbeef. He’s a longtime bitcoiner, the CTO and co-founder of Lightning Labs, and lead developer for LND, one of the main Lightning implementations.Highlights of the conversation include his:- Winning project at the PB hackathon- Areas of focus at Lightning Labs, including improving LND and Taproot Assets- Pragmatic view on stablecoins- Ideas on how best to display bitcoin fractions and decimals- Current favorite gadget: a ring watch-

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27 results

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