The Test Set by Posit
A Posit podcast for data science junkies, anomaly hunters, and those who play outside the confidence interval. Hosted by Michael Chow, with co-hosts Wes McKinney & Hadley Wickham.
Podcasting since 2025 • 18 episodes
The Test Set by Posit
Latest Episodes
Your VP Is Doing a Rogue Analysis in Cursor Right Now — with Nell Thomas
Nell Thomas has spent two decades in data — from equity research to the DNC to Facebook to leading a 400-person data org at Shopify. She walks Michael and Wes through the modern data stack role by role, gets honest about what AI is and isn't ch...
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Season 1
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Episode 18
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1:22:44
Sleeping Rats and Sociopathic Agents — with Phillip Cloud
Phillip Cloud has been shaping the Python data ecosystem since the early pandas days — and he has *opinions*. Now a principal engineer at NVIDIA leading the Ibis project, Phillip talks about how he stumbled into open source via an eye movement ...
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Season 1
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Episode 17
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56:27
More productive but a lot less fun — with Charlie Marsh
Charlie Marsh built Ruff, uv, and Ty — the tools that mass-fixed Python's worst pain points. Now he's grappling with what happens when agents start writing most of the code. In this episode, Charlie gets real about his team trusting his PRs les...
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Season 1
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Episode 16
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1:35:14
Alenka Frim: What yoga teaches us about discipline and collaboration in data science
Alenka Frim went from teaching yoga full-time to becoming a committer and PMC Member on Apache Arrow. In this episode, Alenka joins The Test Set hosts to talk about how Arrow grew from spec to critical infrastructure, and why she started contri...
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Season 1
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Episode 15
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1:01:14
Emily Riederer: Column selectors, data quality, and learning in public
Emily Riederer writes Python with an R accent, and we’re all comfortable with it. In this episode, Emily reflects on her journey through R, Python, and SQL — from lessons learned in averaging default values (oops, we're not all rich!) to discov...
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Season 1
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Episode 14
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58:19
