Johann van Tonder
chat-jvt.bsky.social
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
Directionally interesting to me. Feels like it might be the seed of something more useful.

I oscillate between childishly excited and genuinely scared.
April 25, 2025 at 3:18 PM
Not a replacement for real world data, but potentially a useful early validation data point? You always have more ideas than testing bandwidth.

arxiv.org/abs/2504.097...
AgentA/B: Automated and Scalable Web A/BTesting with Interactive LLM Agents
A/B testing experiment is a widely adopted method for evaluating UI/UX design decisions in modern web applications. Yet, traditional A/B testing remains constrained by its dependence on the…
arxiv.org
April 23, 2025 at 8:32 PM
Ryan, you’re here! Nice to see more familiar faces.

And yes, I would think agents quickly evolve to understand these nuances.
April 14, 2025 at 6:48 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.
April 12, 2025 at 5:27 PM
50 is underrated

Enjoy!
March 31, 2025 at 3:21 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.
March 7, 2025 at 1:48 PM
March 6, 2025 at 7:04 PM
Underwhelming I’m afraid, but also this is the worst it will ever be.
March 6, 2025 at 3:39 PM
Not just me then
March 6, 2025 at 3:35 PM