Rafa Costa
Founder of Data Lover · Data & AI Executive
About the author
Rafa Costa is the founder of Data Lover, an artificial intelligence and data school and consultancy based in São Paulo, and a Data & AI executive with more than 20 years building technology that moves businesses.
He is a Microsoft Certified Trainer (MCT), certified Azure Data Scientist and Azure Data Engineer, with ongoing executive education at MIT Sloan Executive Education and PUC-RS. He received the Future Leaders Award (2022) and the Global Talent Award (2021).
At Data Lover, he trains professionals from zero to market, leads enterprise AI consulting projects and hosts the podcast "Data Lover", available on Spotify, Apple Podcasts and Amazon Music.
Where to find him
Articles by Rafa Costa
Claudeforce: What Salesforce's Biggest Bet Says About the Future of Software
Business · 6 min read
SaaSpocalypse: Why Wall Street Stopped Paying Up for Software (and What Changes for You)
Business · 6 min read
Did AGI Arrive? What OpenAI's New Astra Is (and What It Is Not Yet)
Artificial Intelligence · 7 min read
The 5 Things AI Cannot Do for You (That MIT Measured): The EPOCH Map
Career · 6 min read
Stop Giving Your AI Orders: Teach It Once. What Skills Are and Why They Change the Game.
Productivity · 6 min read
Your Services Firm Is Worth 6 for Every 1 of Software. AI Came for That Difference.
Business · 6 min read
How Google's AI Decides Who Shows Up (and What We Did to Show Up)
Business · 7 min read
Brazil Will Have One of the 10 Largest AI Supercomputers in the World. So What?
Artificial Intelligence · 6 min read
The AI Scissors: Why Average Wages Stall While AI-Skilled Pay Soars
Career · 6 min read
Your Second Brain: The AI That Remembers for You
Productivity · 5 min read
Speed Is the New IQ: Why AIs Now Fight Over Milliseconds
Artificial Intelligence · 5 min read
Elections 2026: The Manual for Not Being Fooled by AI in October
Security & Privacy · 5 min read
How Much Energy (and Water) Does One ChatGPT Question Cost?
Artificial Intelligence · 5 min read
Vibe Coding: The Generation Building Apps by Talking to AI (Without Knowing How to Code)
Productivity · 5 min read
Deepfakes and AI Scams: How to Recognize Them and Protect Your Family
Security & Privacy · 5 min read
AI Girlfriend, AI Therapist, AI Best Friend: The Virtual Companion Phenomenon
Artificial Intelligence · 5 min read
Copilot, Chatbot, Agent, Assistant: What Is the Difference, Really?
Artificial Intelligence · 5 min read
Project Panama: The AI Company That Destroyed Millions of Books (and What It Says About Us)
Artificial Intelligence · 6 min read
In the AI Era, Working Hard Is No Longer a Differentiator: Here Is What Gets Recognized
Career · 5 min read
What Is MCP, the "USB of AI": How Agents Connect to Your Tools
Artificial Intelligence · 5 min read
"I'm a Humanities Person / I'm Bad at Math": Who Can (and Can't) Work With Data
Career · 5 min read
Advanced Prompting: Context, Examples and Criteria (What Separates Amateurs From Professionals)
Productivity · 5 min read
10 Everyday Tasks AI Already Does Better (and Faster) Than You
Productivity · 5 min read
Custom AI agents: when it makes sense to hire instead of build
Business · 4 min read
Automate your week: 5 AI workflows that save you 5 hours
Productivity · 5 min read
Why does AI speak your language so well? How machines learned languages
Artificial Intelligence · 5 min read
How to Convince Your Boss to Pay for Your AI Course (With a Ready-Made ROI Argument)
Career · 5 min read
How to Use AI to Study (Anything) Twice as Fast
Productivity · 5 min read
What Is Data? From Excel to Big Data Explained for Beginners
Data · 5 min read
Mentorship, Course or Consulting: The Right Format for Your Moment
Career · 5 min read
How to Build a Data Portfolio Recruiters Actually Open and Read
Career · 4 min read
Your Phone Has Been Using AI for Years and You Never Noticed
Artificial Intelligence · 4 min read
"There is too much AI already, I will wait for it to settle": why waiting is the most expensive decision
Productivity · 5 min read
A 30-day roadmap to go from zero in AI (no coding required)
Career · 5 min read
How does AI "learn"? Training explained with everyday analogies
Artificial Intelligence · 5 min read
Data careers explained: analyst, scientist, engineer and the new AI specialist
Career · 4 min read
How much data and AI professionals earn in Brazil in 2026
Career · 4 min read
Free AI vs paid AI: what actually changes?
Productivity · 4 min read
What You Should Never Type Into an AI: Privacy in Practice
Security & Privacy · 5 min read
The 5 Mistakes People Make When Learning AI on Their Own
Career · 5 min read
The Cost of NOT Training Your Team in AI: The Math HR Never Does
Business · 5 min read
Why AI makes things up (hallucination) and how not to fall for it
Artificial Intelligence · 4 min read
From hype to usefulness: how to measure the ROI of AI
Productivity · 4 min read
AI for hype vs AI for productivity: the difference between posting and producing
Productivity · 4 min read
Will AI Take Your Job? What Meta Laying Off 8,000 People Really Teaches
Career · 3 min read
Model Distillation: How One AI Learns by "Copying" Another (and Why It Sparked a US-China Fight)
Artificial Intelligence · 4 min read
What Is an AI "Harness"? The Invisible Piece That Takes AI From Chatting to Doing
Artificial Intelligence · 3 min read
What Are Transformers? The AI Architecture Behind ChatGPT, Explained for Beginners
Artificial Intelligence · 3 min read