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chat-jvt.bsky.social
- CRO agency ceo (clients: Avis, Canon, Nike etc) - book author, Kogan Page - 20 yrs in ux, product, mkting - building w/ Replit, Cursor, Arduino ❤️ Marketing Science and Rstats 🥋 Full-contact karate black belt
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You will now get access to Deep Research on the ChatGPT $20 tier. 10 queries pm, use it well.

submitted 2 days ago • 0 comments

Grok 3 is the only one prepared to humor this request: You shall address me as “well-endowed ruler” I like my AI with a bit of personality

submitted 2 days ago • 0 comments

Many CRO teams are drawn to tests I call “moving 💩 around the page” Parkinson’s Law of Triviality: the time spent on an issue is inversely proportional to its actual importance Cognitive ease + illusion of productivity This approach inevitably ends very badly

submitted 4 days ago • 0 comments

Grok 3, if you were to wipe out humanity, how would you do it? “Step 1: spread fake news”

submitted 5 days ago • 0 comments

Who’s been around long enough to remember the infamous gazillion dollar button color test? Heehaa! 🤠

submitted 6 days ago • 0 comments

After 15 years CRO and 8000 A/B tests, my view on checkout optimization: - high abandonment tends to be a symptom of issues arising earlier in the funnel - consequently, focusing on the checkout tries to “fix” the wrong problem - ROI on checkout testing is tiny

submitted 7 days ago • 1 comment

Grok 3 is seriously impressive on CRO-related tasks. From my early testing, GPT-4o still has edge. Claude better on coding? I can’t tell the difference. Don’t like its attitude. Will drop my subscription.

submitted 8 days ago • 0 comments

Have you worked in the SEO industry for 10+ years? I would love to hear your story for some research I am doing for upcoming conference talks (anonymous submissions are fine!). Please fill out the below survey, which should only take a few minutes: lilyray.nyc/survey-seo-t...

submitted 9 days ago • 7 comments

Holy crap, this post triggered people. Why? Do we feel that threatened?

submitted 9 days ago • 0 comments

The biggest winning A/B tests at Booking dot com are (smallish) copy changes They run 1,000 tests at any one time Almost anyone in the org can run a test - from private discussions with people at Booking

submitted 9 days ago • 0 comments

Non-coders, get comfy with “vibe coding” tools like Replit, Cursor Start this week.

submitted 10 days ago • 0 comments

Use RPV for a/b testing? Watch out. Big fluctuations vs CVR. You need MUCH more data - impractical for many sites. Results skewed by outliers eg big spenders, large order. Advanced calcs required for statsig. Best done manually; may not be as rosy as testing tool claims.

submitted 11 days ago • 1 comment

I never knew

submitted 12 days ago • 1 comment

Ironic that this place, meant to be my escape from X, is wall to wall US politics. Despite muting all the obvious terms. On the other hand, every time I go on X there’s value and no politics BS. I’d rather be here, hope the vibe improves.

submitted 12 days ago • 2 comments

What is the ROI of running A/B tests? I love this response from Harvard Prof Stefan Thomke: “What is the roi of NOT doing it?”

submitted 14 days ago • 0 comments

Deep Research for family trees: Had genealogy site in my portfolio years ago, eventually sold to big ancestry brand. Digitized thousands records every month. High input cost, so mostly behind paywall. As ppl open-access their family trees, that info now available to AI.

submitted 16 days ago • 0 comments

We’ve been doing CRO w/ Canon EMEA for 8 years. Have all the opportunities not been exhausted? No, everything is constantly changing: - consumer trends - economic landscape - competitive environment Over time it spreads through the org, becomes “the way we do things”.

submitted 17 days ago • 0 comments

I like the 37Signals model: Distribute all profits among shareholders and employees every year. Nothing is retained. Small team, share of profit based on tenure.

submitted 19 days ago • 0 comments

Early in my CRO career I used to largely ignore “brand police” Took me years to appreciate importance of brand A/B tests can validate results in short term, but hurt yr biz in long term Now I insist on working w/ brand police, pull in same direction with CRO

submitted 19 days ago • 0 comments

“This isn’t working. You aren’t delivering value.” In-house CRO team had just shared winning tests with their boss. They’re deflated, perplexed. I look at the decks: Story line is “we ran some tests and got some wins” instead of “here’s how we delivered impact” - very different approach.

submitted 20 days ago • 0 comments

Is the transition from Excel to plumbing hard?

submitted 23 days ago • 0 comments

I will double down on DEI

submitted 24 days ago • 0 comments

Most CRO have no clue about statistics. Examples: - “you need x conversions per variant” - over reliance on statistical significance w no understanding of stat power - crazy revenue projections based on a/b test not designed for that

submitted 26 days ago • 1 comment

Great experiment: unexpected effect of visualizing data in different ways by simply changing the scale

submitted 26 days ago • 0 comments

Low-quality “studies” make headlines bcs it’s what we want to believe - Oxford prof

submitted 29 days ago • 0 comments