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A/B testing: when the standard test is the wrong tool

Last week was the standard fixed-horizon test: split traffic 50/50, wait for your pre-calculated sample size, look once, done. That's still the right default most of the time.

  • Traditional fixed-horizon A/B test may not always provide accurate information.
  • Multi-armed bandit algorithms offer dynamic approach to maximize revenue during test.
  • Switchback and hold-out tests are alternative methods for conducting A/B tests.

Tech

Pocket is shutting down. I built a replacement that doesn't use AI

Pocket is shutting down... I built a replacement that doesn't use AI Pocket shut down, and I lost 400+ bookmarks. Instead of complaining, I decided to code an alternative that actually respects user…

  • Pocket is shutting down, losing over 400 bookmarks
  • Alternative app avoids AI, uses local-first architecture
  • FetchMarkApp.com invites community testing and feedback

Tech

Why Kyoto, not Tokyo, is Japan’s real deeptech bet

Ask most investors where Japan’s startup action is, and they will say Tokyo without hesitation. But at this year’s IVS 2026, one of Japan’s largest startup gatherings, a quieter story was playing out an hour’s train ride south-west: Kyoto, a city better known for temples than transistors, has quietly built one of Asia’s more interesting…

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