Wow, thanks for the very thoughtful feedback. You're right I think bounds makes more sense. And I also like the bets idea where perhaps the user has a budget of

Wow, thanks for the very thoughtful feedback. You're right I think bounds makes more sense. And I also like the bets idea where perhaps the user has a budget of bound softness they can use on the factors that they're least confident about. These would definitely make a richer, more gamified experience. I'd like to add all these elements, but the challenge will be packaging it all intelligibly into the UX, which is struggling even on this initial basic mvp version. The idea originated because I thought it would be really cool to get good at making these quick estimates, for practical usage in everyday life. So I'm trying to strike a balance between a really rich, complex game, and a little tool to just build mathematical thinking habit and ability. Your mention of team-based estimation where people use one another to whittle down estimates reminds me of this competition I came across while researching: https://estimathon.com/about https://estimathon.com/about. It's very related to this project. Social features, starting with something simple like "you guessed closer than x% of people!" are something that I want to add but I hadn't thought of an almost team-based gameplay like you suggest. Definitely intriguing... Thanks so much!