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Colored-pencil drawing: the Impact Factories meerkat, covered in sticky notes, sits across a small table from the MelonsNet melon helmet and hands it a pink sticky note that reads Who needs you?, under a broken heart.

Series

Impact Factories, Volume 1: The Need

Discovering and formalizing a real customer need

  • Ongoing
  • 31 episodes
  • 736 min read

The first volume of Impact Factories, devoted to the need. Nine months of cash, no customers, no users, no investors. Julien and Sophie have that long to figure out what their customers actually need, and to pin it down clearly enough to build on, before MelonsNet shuts down. You follow their investigation chapter after chapter: the interviews they run, the false leads they chase, the methods that finally work. The next volumes follow the same team on to the opportunity, the product, the factory, the launch and growth.

  1. Colored-pencil drawing: the Impact Factories meerkat, covered in sticky notes, hesitates at a crossroads sign; the arrow “The need” glows between “The solution” and “The funding”. Introduction 19 August 2026 Why this book What led to writing Impact Factories, and why as a novel.
  2. Colored-pencil drawing: the Impact Factories meerkat in front of a blue factory labelled “Test · Learn”, whose chimney puffs out colored sticky notes. Introduction 19 August 2026 What is an impact factory? The working definition the whole story rests on.
  3. Colored-pencil drawing: the Impact Factories meerkat next to an open book bookmarked with four sticky notes: Observe, Test, Learn, Correct. Introduction 19 August 2026 What you are about to read What the book is about, who lives in it, and the questions it will put to you.
  4. Impact Factories, episode 1: Surviving a breakup with the solution 01 15 October 2025 Chapter 1: Surviving a breakup with the solution “Did you know that every click, every search, every purchase you make is already being tracked, analyzed, and exploited without your full knowledge?” The activist asking…
  5. Impact Factories, episode 2: Rising up thanks to collective intelligence 02 30 October 2025 Chapter 2: Rising up thanks to collective intelligence At the entrance to NUMA, two hosts hand each new arrival a sheet of stickers: one for a first name, then little flags to show which…
  6. Impact Factories, episode 3: Revealing the need 03 13 November 2025 Chapter 3: Revealing the need Léo pulls out a chair, spins it around in one move, and sits facing them, forearms folded over the backrest. He has an athlete’s build and…
  7. Impact Factories, episode 4: Categorizing information sources 04 1 October 2026 Chapter 4: Categorizing information sources The next morning, Julien and Sophie call an emergency meeting with their team. Around the table, Laura, the product owner, and the four developers, Éric, Marc,…
  8. Impact Factories, episode 5: Navigating the irrationality of human need 05 Coming soon 8 October 2026 Chapter 5: Navigating the irrationality of human need The meeting has changed hands without anyone really deciding it. Laura steps back and leaves the whiteboard to Max. She keeps hold of her marker, which,…
  9. Impact Factories, episode 6: Following the red thread of the goal 06 Coming soon 15 October 2026 Chapter 6: Following the red thread of the goal Cassandre has opened her mouth to ask a question. Léo sees it coming and raises a hand. He takes his time. You can tell he has…
  10. Impact Factories, episode 7: Avoiding the white box trap 07 Coming soon 22 October 2026 Chapter 7: Avoiding the white box trap Léo opens the meeting room door, Max on his heels. The members of MelonsNet are already standing around the whiteboard: Laura and Julien of course, but…
  11. Impact Factories, episode 8: Beware the shining crystal 08 Coming soon 29 October 2026 Chapter 8: Beware the shining crystal The room is still buzzing with compliments about the shortbread when Léo stands up. The team is refilled with sugar and enthusiasm. Making the most of…
  12. Impact Factories, episode 9: Questioning the need 09 Coming soon 5 November 2026 Chapter 9: Questioning the need Annonay, 1782. In the fireplace, the fire crackles softly. Joseph watches the ashes rise, drawn upwards by something invisible. The curls of smoke climb with a…
  13. Impact Factories, episode 10: Understanding the cost of the need 10 Coming soon 12 November 2026 Chapter 10: Understanding the cost of the need The camera is already rolling when she sits down. Laura stays behind the lens, out of shot. "Hello, my name is Lisa Duval." She gives the…
  14. Impact Factories, episode 11: Varying how we listen to the voices of the need 11 Coming soon 19 November 2026 Chapter 11: Varying how we listen to the voices of the need The debrief board is still covered in the names brought back from the field. Taking stock of how far they have come, Sophie suddenly bursts out…
  15. Impact Factories, episode 12: Convincing the sponsors to move forward 12 Coming soon 26 November 2026 Chapter 12: Convincing the sponsors to move forward The next day, Julien and Sophie take time to talk things over in a café near the office. The atmosphere is heavy. They know that a…
  16. Impact Factories, episode 13: Looking for concrete ground truth beyond the voices 13 Coming soon 3 December 2026 Chapter 13: Looking for concrete ground truth beyond the voices They start by reading, before they call anyone. Emma keeps her promise and puts them in touch with Claire, the marketing director, and Thomas, head of…
  17. Impact Factories, episode 14: Identifying the success indicators to track 14 Coming soon 10 December 2026 Chapter 14: Identifying the success indicators to track The week drags on for Sophie and Julien, set to the rhythm of an avalanche of paperwork. They have started reading a first draft of the…
  18. Impact Factories, episode 15: Understanding the system 15 Coming soon 17 December 2026 Chapter 15: Understanding the system The metro rumbles beneath their feet as Sophie and Julien squeeze into a packed carriage. It is the school holidays, and all around them groups of…
  19. Impact Factories, episode 16: Understanding culture to assess motivations 16 Coming soon 24 December 2026 Chapter 16: Understanding culture to assess motivations Mars, 23 September 1999. After nearly ten months traveling through the immensity of interplanetary space, the Mars Climate Orbiter probe is finally approaching its…
  20. Impact Factories, episode 17: Consolidating knowledge to move forward 17 Coming soon 31 December 2026 Chapter 17: Consolidating knowledge to move forward It is Friday morning, and there is a palpable energy in the air. The whole team can't wait to meet Olivia, the well-known Product Designer Max…
  21. Impact Factories, episode 18: Killing ambiguity 18 Coming soon 7 January 2027 Chapter 18: Killing ambiguity Olivia waits until everyone is settled again, then speaks calmly: "Third and last step of this sequence: evaluation. It's a key moment. We don't judge the…
  22. Impact Factories, episode 19: Scripting the system 19 Coming soon 14 January 2027 Chapter 19: Scripting the system After this aside on handling ambiguity, Olivia walks slowly up to the wall covered in Post-its, as if she were studying an unfinished fresco. She lets…
  23. Impact Factories, episode 20: Getting to know the actors 20 Coming soon 21 January 2027 Chapter 20: Getting to know the actors The following week, the interview guide is carefully prepared: it follows the steps of the CUX, but leaves room for the unexpected. Three main objectives are…
  24. Impact Factories, episode 21: Finding the tensions in the system 21 Coming soon 28 January 2027 Chapter 21: Finding the tensions in the system During the break, they find a quiet corner of the offices. Julien and Sophie try to reach Max by phone. They want to suggest meeting up…
  25. Impact Factories, episode 22: Detailing processes and their requirements 22 Coming soon 4 February 2027 Chapter 22: Detailing processes and their requirements In the hallway, the school bag is waiting by the door. "Come on, Jonas, hurry up, we're going to be late for school!" Ever since they…
  26. Impact Factories, episode 23: Confronting views to hit the mark 23 Coming soon 11 February 2027 Chapter 23: Confronting views to hit the mark On the very evening the contract is signed, Sophie meets Max for a rather special dinner. He has invited her to meet a few of his…
  27. Impact Factories, episode 24: Identifying actionable levers 24 Coming soon 18 February 2027 Chapter 24: Identifying actionable levers On Max's recommendation, Sophie, Laura and Julien go to a lecture at a university. The lecture hall is packed. Julien, Laura and Sophie slip quietly onto…
  28. Impact Factories, episode 25: Evaluating the levers 25 Coming soon 25 February 2027 Chapter 25: Evaluating the levers The bell rings again, echoing off the walls of the lecture hall. Little by little the conversations die down and footsteps sound in the aisles. Sophie,…
  29. Impact Factories, episode 26: Organizing experimentation 26 Coming soon 4 March 2027 Chapter 26: Organizing experimentation Julien spreads butter on his still-warm bread; the coffee machine gurgles in the kitchen. As he does every morning, he turns the knob of the old…
  30. Impact Factories, episode 27: Adopting a learner's mindset 27 Coming soon 11 March 2027 Chapter 27: Adopting a learner’s mindset San Francisco, 2007. Drew Houston sits down in his small flat, cluttered with cables and laptops. A USB stick lies on the desk. He plugs it…
  31. Impact Factories, episode 28: Communicating the results 28 Coming soon 18 March 2027 Chapter 28: Communicating the results Sophie's phone vibrates among the pastries. She puts it on speaker and holds it between herself and Julien. "Hello Sophie, hello Julien, it's Frank, Emma's new…

Extras

To read on the side, in any order.