Johann van Tonder
@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
(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
Let's make up new names for things that have existed for >15 years.
I give you Growth Design, courtesy of Figma Config 2025.
I give you Growth Design, courtesy of Figma Config 2025.
May 14, 2025 at 2:08 PM
Let's make up new names for things that have existed for >15 years.
I give you Growth Design, courtesy of Figma Config 2025.
I give you Growth Design, courtesy of Figma Config 2025.
Me: "How did you hear about us?"
Them: "ChatGPT"
👆increasingly hearing this on sales calls.
SEO can’t have much to do with it, never been a focus for us tbh, so outranked by many other CRO agencies in Google.
Them: "ChatGPT"
👆increasingly hearing this on sales calls.
SEO can’t have much to do with it, never been a focus for us tbh, so outranked by many other CRO agencies in Google.
May 12, 2025 at 5:45 PM
Me: "How did you hear about us?"
Them: "ChatGPT"
👆increasingly hearing this on sales calls.
SEO can’t have much to do with it, never been a focus for us tbh, so outranked by many other CRO agencies in Google.
Them: "ChatGPT"
👆increasingly hearing this on sales calls.
SEO can’t have much to do with it, never been a focus for us tbh, so outranked by many other CRO agencies in Google.
@bhav.bsky.social you’ve earned your salary. I only bought this bcs you work there now.
Mental availability 🧐
Mental availability 🧐
May 11, 2025 at 10:20 AM
@bhav.bsky.social you’ve earned your salary. I only bought this bcs you work there now.
Mental availability 🧐
Mental availability 🧐
"Hey AI, here's a new variation. Simulate A/B test."
- LLM spins up 100k fake users
(personas based on what it knows about yr users)
- a sample of them interacts with yr website as autonomous agents
- standard A/B test analysis to compare performance of A vs B
- LLM spins up 100k fake users
(personas based on what it knows about yr users)
- a sample of them interacts with yr website as autonomous agents
- standard A/B test analysis to compare performance of A vs B
April 23, 2025 at 8:32 PM
"Hey AI, here's a new variation. Simulate A/B test."
- LLM spins up 100k fake users
(personas based on what it knows about yr users)
- a sample of them interacts with yr website as autonomous agents
- standard A/B test analysis to compare performance of A vs B
- LLM spins up 100k fake users
(personas based on what it knows about yr users)
- a sample of them interacts with yr website as autonomous agents
- standard A/B test analysis to compare performance of A vs B
You've spent years A/B testing for humans.
Soon we have optimize for a different species...
Researchers tested agents that navigate the web, evaluate options, book hotels.
These bots don’t care about yr customer-aligned copy or catchy ad creatives.
Price & filters >>> visuals & emotion
Soon we have optimize for a different species...
Researchers tested agents that navigate the web, evaluate options, book hotels.
These bots don’t care about yr customer-aligned copy or catchy ad creatives.
Price & filters >>> visuals & emotion
April 13, 2025 at 5:26 PM
You've spent years A/B testing for humans.
Soon we have optimize for a different species...
Researchers tested agents that navigate the web, evaluate options, book hotels.
These bots don’t care about yr customer-aligned copy or catchy ad creatives.
Price & filters >>> visuals & emotion
Soon we have optimize for a different species...
Researchers tested agents that navigate the web, evaluate options, book hotels.
These bots don’t care about yr customer-aligned copy or catchy ad creatives.
Price & filters >>> visuals & emotion
+2,3% View item
+6,5% PLP
+32% PDP Add To Cart
+5,9% Dealer Locator
Husqvarna is a Swedish manufacturer of outdoor power products eg robotic lawn mowers, chainsaws and garden tractors. One of the oldest continuously running companies in the world.
+6,5% PLP
+32% PDP Add To Cart
+5,9% Dealer Locator
Husqvarna is a Swedish manufacturer of outdoor power products eg robotic lawn mowers, chainsaws and garden tractors. One of the oldest continuously running companies in the world.
April 12, 2025 at 5:27 PM
+2,3% View item
+6,5% PLP
+32% PDP Add To Cart
+5,9% Dealer Locator
Husqvarna is a Swedish manufacturer of outdoor power products eg robotic lawn mowers, chainsaws and garden tractors. One of the oldest continuously running companies in the world.
+6,5% PLP
+32% PDP Add To Cart
+5,9% Dealer Locator
Husqvarna is a Swedish manufacturer of outdoor power products eg robotic lawn mowers, chainsaws and garden tractors. One of the oldest continuously running companies in the world.
Insight:
Users are unsure what they need to know.
Problem:
Filters assume product knowledge that many users don’t have.
Hypothesis:
If we guide them better, they’ll be more likely to find the right product because they won’t need prior knowledge to use the filters effectively.
👇 test results
Users are unsure what they need to know.
Problem:
Filters assume product knowledge that many users don’t have.
Hypothesis:
If we guide them better, they’ll be more likely to find the right product because they won’t need prior knowledge to use the filters effectively.
👇 test results
April 12, 2025 at 5:27 PM
Insight:
Users are unsure what they need to know.
Problem:
Filters assume product knowledge that many users don’t have.
Hypothesis:
If we guide them better, they’ll be more likely to find the right product because they won’t need prior knowledge to use the filters effectively.
👇 test results
Users are unsure what they need to know.
Problem:
Filters assume product knowledge that many users don’t have.
Hypothesis:
If we guide them better, they’ll be more likely to find the right product because they won’t need prior knowledge to use the filters effectively.
👇 test results
Initial impressions of Google Firebase Studio - like Replit in the early days when you'd go around in endless circles.
Underwhelming ... but good indication of where things are going, rapidly.
Underwhelming ... but good indication of where things are going, rapidly.
April 10, 2025 at 5:59 PM
Initial impressions of Google Firebase Studio - like Replit in the early days when you'd go around in endless circles.
Underwhelming ... but good indication of where things are going, rapidly.
Underwhelming ... but good indication of where things are going, rapidly.
Email is broken. It's hard to keep up marking all the AI-generated sales pitches as spam.
Trying a different approach:
Trying a different approach:
March 26, 2025 at 4:51 PM
Email is broken. It's hard to keep up marking all the AI-generated sales pitches as spam.
Trying a different approach:
Trying a different approach:
Gemini 2.0 Flash was the fastest, like a second or two. Compared to Data Science Agent which took a few minutes to propose a plan, then write and execute the Python code ... only to get it wrong.
Claude 3.7 Extended only one that also performed power analysis, presented results in neat format.
Claude 3.7 Extended only one that also performed power analysis, presented results in neat format.
March 7, 2025 at 1:48 PM
Gemini 2.0 Flash was the fastest, like a second or two. Compared to Data Science Agent which took a few minutes to propose a plan, then write and execute the Python code ... only to get it wrong.
Claude 3.7 Extended only one that also performed power analysis, presented results in neat format.
Claude 3.7 Extended only one that also performed power analysis, presented results in neat format.
I gave 7 models the same dataset + deliberately vague prompt:
"Calculate if there is a statistically significant difference between Conversion Rate of Var 1 and Var 2."
Google "Data Science Agent in Colab" is the only one that got it wrong.
"Calculate if there is a statistically significant difference between Conversion Rate of Var 1 and Var 2."
Google "Data Science Agent in Colab" is the only one that got it wrong.
March 7, 2025 at 1:48 PM
I gave 7 models the same dataset + deliberately vague prompt:
"Calculate if there is a statistically significant difference between Conversion Rate of Var 1 and Var 2."
Google "Data Science Agent in Colab" is the only one that got it wrong.
"Calculate if there is a statistically significant difference between Conversion Rate of Var 1 and Var 2."
Google "Data Science Agent in Colab" is the only one that got it wrong.
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
You shall address me as “well-endowed ruler”
I like my AI with a bit of personality
February 25, 2025 at 4:12 PM
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
You shall address me as “well-endowed ruler”
I like my AI with a bit of personality
Grok 3, if you were to wipe out humanity, how would you do it?
“Step 1: spread fake news”
“Step 1: spread fake news”
February 22, 2025 at 4:45 PM
Grok 3, if you were to wipe out humanity, how would you do it?
“Step 1: spread fake news”
“Step 1: spread fake news”
Who’s been around long enough to remember the infamous gazillion dollar button color test?
Heehaa! 🤠
Heehaa! 🤠
February 21, 2025 at 11:38 AM
Who’s been around long enough to remember the infamous gazillion dollar button color test?
Heehaa! 🤠
Heehaa! 🤠
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?”
I love this response from Harvard Prof Stefan Thomke:
“What is the roi of NOT doing it?”
February 13, 2025 at 4:29 PM
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?”
I love this response from Harvard Prof Stefan Thomke:
“What is the roi of NOT doing it?”
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”.
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”.
February 10, 2025 at 2:52 PM
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”.
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”.
Welp.
Previously I would just mark this as spam and block the sender, but inspired by you I want to be better.
Previously I would just mark this as spam and block the sender, but inspired by you I want to be better.
February 4, 2025 at 6:37 AM
Welp.
Previously I would just mark this as spam and block the sender, but inspired by you I want to be better.
Previously I would just mark this as spam and block the sender, but inspired by you I want to be better.
Profound, coming from someone as respected and informed as @emollick.bsky.social
January 18, 2025 at 11:01 AM
Profound, coming from someone as respected and informed as @emollick.bsky.social
Much better already
January 16, 2025 at 5:58 AM
Much better already
Lot of bot followers all of a sudden. As I report & block, more pop up
January 6, 2025 at 6:35 AM
Lot of bot followers all of a sudden. As I report & block, more pop up
After 12 years it's time to cancel Evernote. Prefer the simplicity of Apple Notes.
December 27, 2024 at 5:50 PM
After 12 years it's time to cancel Evernote. Prefer the simplicity of Apple Notes.