One question a day, like Wordle, except instead of a word you estimate a quantity. How many bricks are in the Great Wall. How many bacteria live on a phone screen. You don't have to be right — you have to be roughly right. Scoring is on orders of magnitude: within ~2× is a Bullseye, within 10× is Close, within 100× is Ballpark. The skill it's training is reasoning a number out from things you already roughly know, not recalling it. Bits I didn't expect to end up building: Hints that name the shape of the problem rather than the answer — population × rate, volume packing, stock-and-flow. Costs you half the points, but the shape is the part that transfers to tomorrow. Per-archetype stats, so you find out which kinds of reasoning you're actually bad at across 15 categories. Fu

  • 情报分类：项目价值
  • 命中依据：独立开发每日估算谜题产品，符合项目类
  • 来源：Reddit · SideProject
  • 原作者：/u/Sidath95 https://www.reddit.com/user/Sidath95
  • 发布时间：2026/9/9 20:56:41