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This week on TezTalks Radio, host Brandon Langston welcomes back Ben Elvidge to discuss the next evolution beyond Uranium.io: **Metals.io>.

Last time, the conversation focused on uranium and the challenge of making a difficult physical commodity accessible through modern financial infrastructure.

This time, the lens gets much wider.

Metals.io expands that vision into a broader universe of materials including gold, uranium, strategic metals, and upcoming additions like cobalt, silver, palladium, and nickel.

At the heart of the discussion is a simple question:

Why are some of the world's most important materials still so difficult for ordinary investors to access directly?

Enjoyed our podcast? Shoot us a text and let us know—because great conversations never end at the last word!

This week on TezTalks Radio, we’re joined by Arthur Breitman, co-founder of Tezos, for a deep conversation about TzEL, an experimental project exploring private, post-quantum payments on Tezos testnet.

At the center of the discussion is a deceptively simple question:

If blockchain data can remain public forever, what does privacy actually mean over time?

Rather than treating privacy as a momentary concern, this episode looks at the long-term reality of encrypted transaction data that may still exist decades from now — and what happens if future cryptographic assumptions change.

🎙️ The conversation moves through private payments, post-quantum cryptography, rollups, the DAL, and the engineering realities of turning research ideas into working systems.

🔍 In this episode, we explore:

• Why blockchain privacy has a “time problem”
• What kinds of transaction data remain exposed long term
• Why Arthur became interested in private post-quantum payments specifically
• What TzEL is actually testing — and what it is not claiming yet
• How Tezos’ long-term adaptability connects back to post-quantum design
• The difference between a research prototype and production infrastructure
• What had to be built to make TzEL function end to end
• Why proof size becomes a major constraint for private systems
• How the Tezos DAL changes what becomes practical
• Why heavier cryptographic systems may naturally live in rollups
• How viewing keys, detector keys, and selective disclosure work in practice
• What this experiment reveals about the future design space for Tezos

This is one of the clearest conversations yet on how Tezos infrastructure, rollups, governance, and long-term adaptability connect together underneath the surface.

Enjoyed our podcast? Shoot us a text and let us know—because great conversations never end at the last word!

This week on TezTalks Radio, we’re joined by Yann Régis-Gianas to unpack Ushuaia, a new Tezos protocol proposal that sits directly in the path toward Tezos X.

From the outside, Tezos X promises something simple: a more unified Tezos experience where EVM and Michelson applications can interact more directly without the awkward fragmentation users are used to across chains, rollups, wallets, and app environments.

Ushuaia is part of the infrastructure underneath that promise.

This episode focuses on what Ushuaia actually unlocks, what becomes harder without it, and how the clean roadmap for Tezos X meets the reality of engineering constraints.