Stefan Karpinski

Co-founder and CPO, JuliaHub · 1 appearance on the record.

computed by AI from the episodes · how this works → · full disclaimer →

founderscientistengineerexecutive@StefanKarpinski ↗LinkedIn ↗karpinski.org ↗Wikipedia ↗

Stefan Karpinski is a co-creator of the Julia programming language, developed for scientific computing. In 2015, he co-founded JuliaHub and later received the 2019 J. H. Wilkinson Prize for Numerical Software alongside his co-creators.

5statements → 2claims → 1claims resolved → 3.8/5average certainty → 2/5average debate potential →

0 supported 1 partly supported 0 contradicted 1 not checkable as stated how the 2 claims stand · each chip opens the sources

2 assertions · 1 opinion · 2 insights · every statement was checked. The predictions and assertions are the 2 claims: statements the public record can support or contradict. 1 is resolved, and 1 names no date, number or outcome precise enough to check. Everything else (opinions, insights, what ifs, disclosures) can never be settled by the record, so it carries no assessment.

The record, in short

What the tape says about how Stefan argues and how the claims held up. Everything they said, and everything said about them, is in the tabs below.

How they sound: speaking style how? →

262 words/min while actually speaking · 29.2 um and uh per 1k words

No argument clarity score for Stefan Karpinski: no usable question→answer exchanges on raw tape (a fair score needs 8+). We do not score a sample that small. Roundtable and news formats yield far fewer direct exchanges than interviews.

Measured by listening to the audio itself: 2,121 words across 1 episode of raw-level tape, transcribed verbatim with every um and uh kept, each one attributed only where the alignment onto our timed stream is unambiguous. These are measurements of speaking style. We do not rank them: across this corpus, fluency and argument quality are nearly uncorrelated (ρ≈0.2), and smooth talking does not signal clear thinking. How it's measured →

What they said5 Episodes1

Everything Stefan Karpinski said on the MAD Podcast that made the record, most notable first. Filter by type, assessment or year in the ledger →

Opinion

Karpinski: R produces the best plots and leads statistical analysis

“I think it makes the best plots and it's, you know, the undisputed king in, in statistical analysis.”

Stefan Karpinski Sep 28, 2017 ▶ 1:21 A Fresh Approach to Technical Computing // Viral Shah & Stefan Karpinski, Julia Computing

Assertion Partly supported

Karpinski: Julia surpassed NumPy in contributors within one year

“Even when we were one year into being a public project, we already had more contributors and developers than NumPy, and I could not understand how that was possible, because I was like, we're this very young project, this was, you know, back in 2013”

Stefan Karpinski Sep 28, 2017 ▶ 5:52 A Fresh Approach to Technical Computing // Viral Shah & Stefan Karpinski, Julia Computing

Insight

Karpinski: Alternating language layers in AI frameworks prevents compiler optimizations

“They have what I've, I would describe as a sandwich problem, which is that you end up sandwiching a lot of system code with user code, and then, like, adding more and more layers of that, and as you've sandwiched, like, you know, seven or eight layers of that,…”

Stefan Karpinski Sep 28, 2017 ▶ 6:39 A Fresh Approach to Technical Computing // Viral Shah & Stefan Karpinski, Julia Computing

Assertion Not checkable as stated

Karpinski: Julia's real-world execution speed stays within 2x of C

“The real life, life experience of what people have done, you know, in like, you know, years of programming in Julia now, is that they tend to see that Julia is within one to two of C.”

Stefan Karpinski Sep 28, 2017 ▶ 8:11 A Fresh Approach to Technical Computing // Viral Shah & Stefan Karpinski, Julia Computing

Insight

Karpinski: Automatic dynamic code translation fails due to edge cases

“The trouble is when you get into automatic translation, it's always the corner cases that kill you. And the corner cases that kill you with automatic translation are actually exactly the reasons why you can't just sit down and be like, oh, let's just make Pyth…”

Stefan Karpinski Sep 28, 2017 ▶ 24:59 A Fresh Approach to Technical Computing // Viral Shah & Stefan Karpinski, Julia Computing

Appearances (1)

Episode	Date	Speaking time
A Fresh Approach to Technical Computing // Viral Shah & Stefan Karpinski, Julia Computing	Sep 28, 2017	9m

Stefan Karpinski

The record, in short

How they sound: speaking style how? →

Appearances (1)

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