The foundational YC lesson on extracting truth from user conversations.
How to talk to users
Y Combinator 2024
Open ycombinator.com →Share the prototype link and watch five real people try to complete one task without your help; tools like Maze now test prototypes built in Figma Make, Lovable, Bolt, and Replit directly, and AI handles the busywork of writing test plans and summarizing sessions. Synthetic 'AI users' are useful for piloting your interview questions and cheap early passes, but the research consensus is clear: they replay what is already known and cannot surprise you, and the surprises are where the product insights live. Use AI to speed up research on real humans, not to replace them.
19 resources.
The foundational YC lesson on extracting truth from user conversations.
Y Combinator 2024
Open ycombinator.com →A research leader's founder-specific interview playbook, from Uber Eats and beyond.
First Round Review (In Depth) 2025
Open review.firstround.com →Purpose-built for this exact workflow, including prototypes from Figma Make, Lovable, Bolt, and Replit.
Maze 2025
Open maze.co →A neutral overview of where AI genuinely speeds up usability testing.
Figma 2025
Open figma.com →Turns 'send the link around' into a structured test with real findings in about an hour.
Reforge 2025
Open reforge.com →Mobile-specific prototype testing tactics, useful for app founders.
UserTesting 2025
Open usertesting.com →The most rigorous framework for when AI research participants are and are not legitimate.
Nielsen Norman Group 2024
Open nngroup.com →Peer-reviewed-grade caution on what simulated users systematically miss.
ACM Interactions Jan 2026
Open interactions.acm.org →Quantitative comparisons of synthetic versus human responses across studies.
MeasuringU (Jeff Sauro) 2025
Open measuringu.com →The crispest articulation of the unknown-unknowns problem with AI feedback.
Radical Product Thinking 2025
Open radicalproduct.com →A balanced practitioner summary if you only read one pros-and-cons piece.
Hashbyt 2025
Open medium.com →Head-to-head of the three main AI research platforms, including message testing.
Genesys Growth 2026
Open genesysgrowth.com →A current tool landscape so you pick by need, not brand recall.
UXArmy 2025
Open uxarmy.com →A researcher's hands-on trial of synthetic interviews with honest results.
Carolina Guimarães 2025
Open carolinaguimaraeslima.medium.com →The evergreen craft of prototype testing: watch, don't instruct.
Interaction Design Foundation 2024
Open ixdf.org →A free field guide for running interviews that produce decisions, not just notes.
User Interviews 2024
Open userinterviews.com →The fastest way to get task-based usability data on a clickable prototype.
Maze 2025
Open maze.co →Real human panels with AI synthesis, highlight reels, and fraud detection on top.
UserTesting 2025
Open usertesting.com →The leading tool for AI-simulated interviews; try it knowing its limits.
Synthetic Users 2025
Open syntheticusers.com →The same ground, over in Build the product, our Starting Up track.