Aaron Katz
Co-Founder and CEO, ClickHouse · 2 appearances on the record.
computed by AI from the episodes · how this works → · full disclaimer →
founderexecutiveoperator@ceo_clickhouse ↗LinkedIn ↗clickhouse.com ↗
Aaron Katz co-founded and leads ClickHouse, guiding the open-source analytical database’s transition into a high-performance commercial cloud platform serving customers like Netflix, Spotify, and Uber. Before ClickHouse, he built a 25-year career in enterprise software, serving 12 years in global sales leadership at Salesforce and later as Chief Revenue Officer at Elastic.
11 supported 1 partly supported 0 contradicted 8 not checkable as stated how the 20 claims stand · each chip opens the sources
2 predictions · 18 assertions · 3 opinions · 4 insights · 15 disclosures · every statement was checked. The predictions and assertions are the 20 claims: statements the public record can support or contradict. 12 are resolved, and 8 name 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 Aaron argues and how the claims held up. Everything they said, and everything said about them, is in the tabs below.
Their most notable supported claim
Expressed certainty vs assessment result
weighted support: a fully supported claim counts one, a partly supported claim counts half. Each filled bar is clickable and opens exactly those claims; "none yet" means nothing said at that certainty level has resolved yet
Argument clarity: do they answer the question? how? →
redirected or did not address 4 of 14 assessed questions (29%). Watch them ▸
This is a score against a rubric. It is not a rank. Every host question → answer exchange is scored with names hidden on directness, coherence, precision and compression, 1–5 each, on meaning alone: disfluencies are ignored, and only raw unedited episodes count. This is the score that measures thought. Every scored exchange, scores shown → · The rubric and its checks →
How they sound: speaking style how? →
246 words/min while actually speaking · 25.4 um and uh per 1k words
Measured by listening to the audio itself: 12,446 words across 2 episodes 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 →
Everything Aaron Katz said on the MAD Podcast that made the record, most notable first. Filter by type, assessment or year in the ledger →
Appearances (2)
| Episode | Date | Speaking time |
|---|---|---|
| How ClickHouse powers Netflix, Uber and Spotify’s Analytics | Aaron Katz, CEO of ClickHous | Jun 13, 2024 | 36m |
| Fireside Chat: Aaron Katz (Co-Founder & CEO, ClickHouse) with Matt Turck (Partner, FirstMa | Nov 16, 2021 | 25m |