Data Science Unicorn

Great leaders are masterful because they don't get in the way. They don't interfere. When you step away from your ego and you release your competitive streak, you become nicer, better, and more effective. When you don't force your ideas on everyone else, when you don't force a direction, magical things happen.

Your team comes together. They come up with amazing ideas. They set the direction and they are inspired to follow it. They try harder. They do more. And this can only happen when there is no interference and disruption from an egotistical leader who loves hearing his own voice. It seems like a counterintuitive concept for leadership, l know. But I can tell you it works. It's worked for me for more than ten years now…”

Using AI I built a simple tracker to test whether it actually helps with consistency because I couldn’t find an app that worked this way for me.

I’m looking for early testers to see if it’s worth the investment of keeping it up and running.

If someone comes to mind, would you mind forwarding this?

A Visual Introduction to Dimensionality Reduction with Isomap

✦ ChatGPT fundamentals. Level: ⭐ Easy.

Learn the (very) basics of ChatGPT in 3 minutes.

Link: https://academy.openai.com/public/clubs/work-users-ynjqu/resources/chatgpt-basics.

✦ ChatGPT for any role. Level: ⭐ Easy.

Quick prompts from the OpenAI Academy.

Link: https://academy.openai.com/public/clubs/work-users-ynjqu/resources/chatgpt-for-any-role.

✦ Prompting class. Level: ⭐⭐ Advanced.

The science behind prompt engineering.

Link: https://academy.openai.com/public/clubs/work-users-ynjqu/resources/prompting.

✦ Set up your ChatGPT. Level: ⭐⭐⭐ Expert.

No one taught you how to (properly) set up ChatGPT.

Link: https://ruben.substack.com/p/settings.

✦ Be rude to ChatGPT. Level: ⭐⭐⭐ Expert.

The do’s and don’t of deep prompt engineering.

Link: https://ruben.substack.com/p/sorry.

✦ How long should a prompt be. Level: ⭐⭐⭐ Expert.

A prompt can’t be too short or too long. Here’s what science says.

Link: https://ruben.substack.com/p/long.

Master Claude.

✦ Claude basics. Level: ⭐ Easy.

Go through the basics. Directly from Anthropic Learning Hub.

Link: https://anthropic.skilljar.com/ai-fluency-framework-foundations.

✦ Claude to write exactly like you. Level: ⭐⭐ Advanced.

How to teach Claude your own custom writing style.

Link: https://www.linkedin.com/posts/ruben-hassid_how-to-make-ai-write-exactly-like-you-activity-7353740672358592512-4Yqq/.

✦ Claude prompting, advanced techniques. Level: ⭐⭐⭐ Expert.

This one-pager is only for people who are comfortable with prompt engineering.

Link: https://docs.claude.com/en/docs/build-with-claude/prompt-engineering/claude-4-best-practices.

Master Automations.

✦ Zapier Learn. Build your first zap. Level: ⭐ Easy.

Zapier is the leading automation tool.

Link: https://learn.zapier.com/build-your-first-zap.

✦ Lindy Academy. Lindy 101. Level: ⭐ Easy.

Another automation tool. Reminder: it’s part of the paid-member free perks.

Link: https://www.lindy.ai/academy-lessons/getting-started-101.

✦ ChatGPT Tasks. Level: ⭐⭐ Advanced.

I’m not a big fan of the tasks. But some need an automatic update from ChatGPT.

Link: https://help.openai.com/en/articles/10291617-tasks-in-chatgpt.

Master Gamma.

✦ Gamma Prompt Library. Level: ⭐⭐ Advanced.

They just released a Gamma prompt library. So much value in here.

Link: https://gamma.app/prompts.

✦ Gamma Inspirations. Level: ⭐⭐ Advanced.

A library of the best Gamma decks. You can copy them too.

Link: https://gamma.app/inspiration.

✦ Replace a consultant. Level: ⭐⭐⭐ Expert.

Written with Gamma’s CEO, Grant Lee. Go from analysis to deck.

Link: https://ruben.substack.com/p/consulting.

Master Gemini.

✦ Gemini prompting, the complete guide. Level: ⭐⭐⭐ Expert.

Foundational skills for writing effective prompts.

Link: https://services.google.com/fh/files/misc/gemini-for-google-workspace-prompting-guide-101.pdf.

✦ Gemini Deep Research. Level: ⭐⭐ Advanced.

How to perform a deep research through the web / your files.

Link: https://gemini.google/tg/overview/deep-research/.

✦ Gemini Nano-Banana. Level: ⭐⭐ Advanced.

One of the best image model on the market.

Link: https://ruben.substack.com/p/banana.

Bonus: this crazy repo of case studies here. Also free.

✦ Gemini Veo-3. Level: ⭐⭐⭐ Expert.

One of the best video model on the market.

Link: https://cloud.google.com/vertex-ai/generative-ai/docs/video/video-gen-prompt-guide.

Master Midjourney.

✦ Get started with Midjourney. Level: ⭐⭐ Advanced.

The basics. But even the basics aren’t easy.

Link: https://docs.midjourney.com/hc/en-us/articles/33329261836941-Getting-Started-Guide.

✦ Midjourney Prompt Basics. Level: ⭐⭐ Advanced.

Turn words into images.

Link: https://docs.midjourney.com/hc/en-us/articles/32023408776205-Prompt-Basics.

✦ Everything about Midjourney. Level: ⭐⭐⭐ Expert.

Absolutely all of the Midjourney ressources. It would take hours to complete, but that’s a $100,000+ new kind of job. AI designer.

Link: https://docs.midjourney.com/hc/en-us/categories/32013335627533-Documentation.

Master Perplexity.

✦ Comparing different AI to search. Level: ⭐⭐ Advanced.

I compared all of them. Here’s why Perplexity is better.

Link: https://ruben.substack.com/p/search.

✦ Perplexity Labs guide. Level: ⭐⭐⭐ Expert.

Unknown but advanced feature.

Link: https://www.perplexity.ai/hub/blog/introducing-perplexity-labs.

✦ Perplexity at work. Level: ⭐⭐ Advanced.

Great resource to know the depth of Perplexity.

Link: https://substack.com/profile/339636559-ruben-hassid/note/c-171660849

Master OpenAI-Sora.

✦ Sora basics. Level: ⭐⭐ Advanced.

It covers everything to start.

Link: https://academy.openai.com/public/collections/sora-tutorials-2025-03-11.

✦ Sora in-depth guide. Level: ⭐⭐⭐ Expert.

My own complete guide for Sora videos.

Link: https://tathastu-rh.notion.site/SORA-2-PROMPT-GUIDE-2849464bdbf980e2b746f9d26e6f9061.

Master NotebookLM.

✦ How to train your AI on YouTube. Level: ⭐⭐⭐ Expert.

Train your own AI on your favorite YouTube videos.

Link: https://ruben.substack.com/p/youtube.

✦ Learn anything, with AI. Level: ⭐⭐ Advanced.

Build your own teacher yourself.

Link: https://ruben.substack.com/p/master.

Master Opus Clip.

✦ Learning Center. Level: ⭐⭐ Advanced.

All-in-one guide to Opus Clip, by Opus Clip.

Link: https://www.opus.pro/learning-center.

✦ From YouTube to TikTok videos. Level: ⭐ Easy.

A video step-by-step to go from long to short form.

Link: https://www.linkedin.com/posts/ruben-hassid_this-ai-made-24-tiktoks-in-3-min-heres-activity-7222186928152952832-R-0E/.

Master ChatGPT-image.

✦ A carousel of what’s possible. Level: ⭐ Easy.

My quick, 12-page, detailed guide.

Link: https://lnkd.in/dh45EePJ.

✦ The official ChatGPT guide. Level: ⭐ Easy.

+ a cool library of best-of prompts.

Link: https://chatgpt.com/features/image-generation/

Understand AI on a deeper level.

From easy to expert.

✦ 35 years that led to ChatGPT. Level: ⭐ Easy.

A bit of history. It helps understand the world today.

Link: https://m.youtube.com/watch?v=OFS90-FX6pg&utm_source=substack&utm_medium=email

✦ 16 ChatGPT myths. Level: ⭐ Easy.

No, ChatGPT does not read the entire internet. Debunk every single myth.

Link: https://ruben.substack.com/p/16-chatgpt-myths.

✦ What is an LLM? Level: ⭐⭐ Advanced.

A must-watch to understand the technology behind ChatGPT.

Link: https://m.youtube.com/watch?v=LPZh9BOjkQs&pp=4gcKEghzdWJzdGFjaw%3D%3D

✦ Machine Learning with Andrew Ng. Level: ⭐⭐⭐ Expert.

Expert only. 99.9% of us don’t need this course.

Link: https://www.coursera.org/specializations/machine-learning-introduction.

✦ Deepdive into LLMs. Level: ⭐⭐⭐ Expert.

By Andrej Karpathy, one of the “creator” of ChatGPT.

Link: https://m.youtube.com/watch?v=7xTGNNLPyMI&t=1s&pp=2AEBkAIB4gcKEghzdWJzdGFjaw%3D%3D

To delve into this I used ChatGPT & Replit to spin-up a functioning physiotherapy tracker app in under an hour.

But the leadership insights matter more than the code.

- True innovation balances vision with velocity: test the pain points quickly, but never lose sight of the big idea.

- AI increasingly makes scope creep cheaper, so good leadership is needed to maintain focus.

- The future of tech leadership is turning AI from a tool into a teammate, and reshaping how we build together.

I shared my full walkthrough and leadership takeaways here: https://medium.com/@jbyrnephd/building-faster-leading-smarter-a-tech-leaders-experiment-with-ai-driven-app-development-518c47b765c2

My key insight:

• For individuals, Agentic AI will soon be the personal assistant we never had; becoming a commodity in everyday tools that supercharges productivity.

So 𝘧𝘳𝘰𝘮 𝘵𝘶𝘵𝘰𝘳𝘪𝘢𝘭 𝘵𝘰 𝘵𝘦𝘢𝘮 𝘱𝘭𝘢𝘺𝘣𝘰𝘰𝘬: I've distilled Databricks' unstructured data pipeline for RAG into a 𝒎𝒊𝒏𝒊𝒎𝒂𝒍, 𝒓𝒖𝒏𝒏𝒂𝒃𝒍𝒆 𝒘𝒂𝒍𝒌𝒕𝒉𝒓𝒐𝒖𝒈𝒉 your teams can drop into a UC-governed project and start measuring.

Highlights:

- widgets and a _bootstrap setup (that software developers might hate but data scientists will appreciate).

- gotchas: path configs and UC table naming.

- levers to tune: chunk size/overlap, model swaps.

Leader's angle: 𝐬𝐭𝐚𝐧𝐝𝐚𝐫𝐝𝐢𝐬𝐞 𝐞𝐱𝐩𝐞𝐫𝐢𝐦𝐞𝐧𝐭𝐬, reduce setup drag, and enable fast iteration and comparison of results across projects and teams.