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The Latency Goldilocks Zone Explained

12 snips
May 12, 2026
Daniel Wobert, Data Science Manager at iFood who built the AILO conversational agent, talks hyper-personalization and the Large Commerce Model that profiles every user. They cover recommendation tradeoffs, the Tinder-style exploration test, multi-channel UX for app/WhatsApp/voice, the Goldilocks latency zone of perceived response time, and operational lessons from scaling agents in production.
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ANECDOTE

WhatsApp 'Tell Me About Me' Produced Wow Moments

  • The 'tell me about me' WhatsApp feature triggered strong emotional reactions by summarizing user profiles.
  • Rafael recalls users were excited and surprised to see private patterns like late-night chocolate orders revealed.
ANECDOTE

Tinder Mode Helped Break Narrow Food Habits

  • iFood built a Tinder-style swipe UI to broaden tastes and it produced promising signals.
  • Rafael explains swiping exposes users to non-regular cuisines and quickly learns new preferences for future recommendations.
ADVICE

Use Progress Signals To Reduce Perceived Latency

  • Show streaming or progress to reduce perceived latency rather than only optimizing raw speed.
  • Rafael recommends visual cues or messages so users see the system is 'looking' and won't assume a bug.
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