60cards3 makes memory practice fun and accessible to everyone. Designed for people who enjoy mental challenges, it offers adjustable difficulty levels, timed card-recall challenges, personal performance statistics, and a global leaderboard. Free to play, with no download or email required.
Wave28 is a simple experiment: rate your energy for the last two days and see a projected curve for the next 28. The idea comes from the observation that many systems show periodic behavior with noise. Wave28 explores whether a simple wave approximation can be useful for thinking about personal rhythms, planning tasks, or timing decisions.
