Brannin McBee (Core Weave) on Greening the Grid, the Texas Meltdown, and Bitcoin Mining (EP.183)
On The Brink with Castle Island
Release Date: 02/22/2021
Weekly Roundup 04/18/25 (Signature Postmortem, Mantra collapse, Powell on stablecoins) (EP.615)
On The Brink with Castle Island
Matt and Nic are back with another week of news and deals. In this episode: We recap Nic’s article on why Signature collapsed Crypto exchange OKX their plans to expand to the US Kraken that US equities are now supported on the exchange MANTRA, a layer 1 network focused on RWAs, saw the price of its native token 90% in a matter of hours Global Payments agreed to Worldpay, a payments processor, for $24 billion from FIS and private equity firm GTCR The US Department of Homeland Security has launched a into Anchorage,...
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Fred Hsu and Michael Ho (D3) on Creating Efficient Domain Name Markets (EP.614)
On The Brink with Castle Island
Wyatt sits down with Fred Hsu and Michael Ho of to talk domain markets. In this episode: The existing domain name industry and legacy systems An interoperable marketplace for domains New financial promitives around domains and RWAs
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Yuval Rooz and Eric Saraniecki (Digital Asset) on the Canton Network (EP.613)
On The Brink with Castle Island
Yuval Rooz and Eric Saraniecki, co-founders of Digital Asset join the show. In this episode we discuss: The origins of Digital Asset and the path to starting the firm. Views on privacy in the context of public blockchains. How enterprises and financial institutions are approaching tokenizing assets and leveraging blockchain technology. Examples of how on-chain privacy enables use cases in collateral management and stablecoin payments. The role of the Canton Network public blockchain for enabling institutional use cases. How Canton Network works from a design perspective. To learn...
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Weekly Roundup 04/11/25 (Tether’s new stablecoin, Signature, dedollarization, DoJ disbands crypto team) (EP.612)
On The Brink with Castle Island
Matt and Nic are back with another week of news and deals. In this episode: Is dedollarization happening? The SEC's Division of Corporate Finance released a "" The US Justice Department has its National Cryptocurrency Enforcement team The SEC releases new guidance on securities offerings in crypto markets FDIC Chair relaxes rules on crypto activities at banks Paul Atkins is confirmed The SEC has approved options trading for spot ETH ETFs Tether is exploring a US stablecoin Janover is doing a Microstrategy for SOL strategy Michelle Bowman is launching a review...
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Wyatt Lonergan and Juan Lopez (Vaneck Ventures) on Stablecoin Adoption and The Institutionalization of Crypto (EP.611)
On The Brink with Castle Island
and of join the show to talk stablecoins and institutionalization. In this episode, we cover: The landscape of stablecoin growth and activity A world with many stablecoins vs few stablecoins Winning/losing companies in the new stablecoin era Impact on the longer tail of altcoins
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Hoolie Tejwani (Coinbase) on The Evolution of Coinbase Ventures (EP.610)
On The Brink with Castle Island
, the head of Coinbase Ventures joins the show. In this episode we discuss: The history and rationale behind the launch of Coinbase Ventures. The evolution of the crypto venture category. Areas of focus for Coinbase Ventures. Stablecoins, Crypto/AI and consumer startup category. The regulatory landscape in the United States. Operation Chokepoint 2.0 and the impact on startups. The rise of the Coinbase Mafia. To learn more visit
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Weekly Roundup 04/03/25 (Circle S1, Tariffs, Galaxy settles, BitMEX pardons) (EP.609)
On The Brink with Castle Island
Matt and Nic are back for another week of news and deals. In this episode: What’s the deal with the tariffs? Are the tariffs 4D chess? STABLE Act advances from committee Galaxy settles with the NYAG for touting Luna Trump pardons the BitMEX founders Coinlist returns to the US FDUSD has a depeg amidst Justin Sun drama Fidelity launches a no-fee crypto IRA product Larry Fink is bullish bitcoin Content mentioned:
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Alexei Zamyatin (Build on Bitcoin) on True Rollups on Bitcoin (EP.608)
On The Brink with Castle Island
, the cofounder of (BOB), joins the show to talk about the state of the art in Bitcoin Rollups. In this episode: Can Bitcoin achieve parity with Ethereum rollups? How BitVM and BitVMv2 changed the game for Bitcoin rollups When will Bitcoin rollups be considered “Stage 1” Ethereum’s existential crisis Bitcoin fees in a rollup world The risk of L2s cannibalizing Bitcoin Will Bitcoin DeFi look different from Ethereum DeFi? Why Bitcoin deserves Rollups What soft forks is Alexei looking forward to? Does institutionalization ossify Bitcoin? BOB’s progress and roadmap for 2025 Learn...
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Weekly Roundup 03/28/25 (MiCA Stablecoins, Gamestop, Hyperliquid) (EP.607)
On The Brink with Castle Island
Matt and Nic return for another week of news and deals. In this episode: We reflect on our podcast with Paolo Ardoino The EU’s MiCA rules make launching a stablecoin virtually impossible We explain the Ghiblification crazy OCC removes Reputation risk from bank supervision World Liberty Fi launches a stablecoin Hyperliquid suffers an exploit - are they decentralized? Fidelity is exploring the launch of a stablecoin ICE is looking to use USDC Coinbase is reportedly looking to acquire Deribit US Treasury lifts sanctions on Tornado Cash Sei is looking to buy 23andme
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Paolo Ardoino (Tether) on stablecoin bills, pursuing an audit, and getting to 400m users (EP.606)
On The Brink with Castle Island
, the CEO of Tether, rejoins the show for a timely discussion. In this episode: How is Paolo feeling about political trends in the US today? Tether is the 7th-largest buyer of USTs at the sovereign level Paolo’s decision to spend more time in the US What does Paolo make of the stablecoin bills in Congress? Does Tether want to eventually come onshore to the US? Tether is pursuing a Big 4 Audit The effect of Operation Choke Point 2.0 on Tether Tether is moving their HQ to El Salvador Paolo’s thoughts on stablecoins in MiCA How does Tether get to the figure of 400m global users of the...
info_outlineCore Weave chief strategy officer and former energy trader Brannin McBee joins the show to talk about the grid meltdown in Texas and the impact of renewables on the grid. In this episode:
- Brannin's history in energy trading and energy analytics
- How his firm survived a 95% collapse in the price of natural gas – and how that presaged his work in the crypto space
- How Brannin's firm Core Weave alternates between mining ETH and monetizing GPUs through high-performance compute
- How wholesale power trading works – and how it provides valuable informational signals to the grid
- How the US grid is arranged – and how the energy mix has changed in the last decade
- How coal has been marginalized in the last decade through natural gas and renewables
- Why energy is not globally fungible
- Why forecasting wind is so difficult – and how that complicates including wind into the grid
- How renewables trade off reliability against carbon impact
- How increasing the share of wind and solar destabilizing the grid
- Why increasing units of wind requires new units of gas on the grid
- The confluence of causes behind the Texas grid failure last week
- How Core Weave selected their location on the grid – and how they took political risk into account
- How much energy Bitcoin consumes – and where that stands relative to the energy consumption of the US
- How flaring natural gas to mine Bitcoin works – and whether it's economical
- Does Bitcoin work as a load balancer for grids?
- Can you compare Bitcoin's footprint to that of entire countries?