Laetus
Laetus
Laetus explores how people make decisions when certainty is impossible. Using behavioral analytics, probability, and real-world experiments, it helps you better understand your own patterns under uncertainty.
Available on Android, iOS and on the Web.
Laetus is now available on Android, iOS and the Web. The release introduces Bitcoin Lottery, expanded behavioural analytics, and completes the project's second large-scale public experiment.
Laetus is an independent research project supported by its community. Learn how you can help →
When reliable facts are available, good decisions are usually straightforward. But many real-life situations involve uncertainty. Sometimes important information is unavailable. Sometimes there are simply too many factors to analyze. Sometimes people rely on intuition, rituals, or even astrology. Laetus explores another possibility. Instead of making generalized predictions, it builds personalized observations from your own behavior, long-term experiments, and measurable randomness.
Follow Laetus for new experiments, behavioral insights, and updates from the project.
💬 Real discussions about luck, randomness, and decision-making are happening here:
Join the conversation on Reddit →Laetus is designed for situations where certainty is impossible. Instead of attempting to predict the future, it continuously observes how you interact with randomness, how your decisions evolve, and how those observations compare with real-world outcomes.
Rather than relying on generalized predictions, Laetus builds personalized insights from your own history, behavioral patterns, Luck Pulse observations, and long-term experiments.
Every day people make two very different kinds of decisions. Some are based on reliable facts. Others must be made despite uncertainty.
If the weather forecast predicts rain, taking an umbrella is an informed decision. If a doctor recommends a treatment, the recommendation is based on evidence. If a map shows the fastest route, there is little reason to rely on anything else.
But many situations are fundamentally different. Starting a company. Accepting a new job. Publishing an important idea. Making the first move in a relationship. Choosing the right moment. Supporting one opportunity over another. Sometimes the missing information simply does not exist. Sometimes it exists but is impossible to collect. Sometimes there are too many variables for any person to evaluate.
Throughout history people have relied on intuition, lucky numbers, rituals, astrology, or even a coin flip when certainty was impossible. Laetus explores another approach.
Rather than making generalized predictions, Laetus builds personalized observations from your own history. It studies how you interact with uncertainty, how your behaviour changes over time, and whether measurable patterns emerge through long-term observation.
The goal is not to predict the future. The goal is to better understand your own decision-making process when the future cannot be known.
Laetus 2.0 introduces one of the project's most unusual experiments. Instead of comparing your choices with lottery numbers, Bitcoin Lottery compares your personal 32-bit value with real Bitcoin blocks produced by the global mining network. Every day, hundreds of newly mined Bitcoin blocks become independent observations of randomness. Laetus measures how closely your selected nonce matches the real nonces produced by Bitcoin miners using Hamming Distance analysis.
No mining hardware. No cryptocurrency. No gambling. Just a transparent experiment exploring whether luck can also be observed in one of the world's largest decentralized computational systems.
Available in Laetus 2.0.
Laetus does not rely on a single source of randomness. Instead, it combines several independent datasets that can be observed over long periods of time.
International lottery results provide long-term observations of independent random events and allow behavioral comparisons over time.
Real Bitcoin blocks contribute thousands of independent randomness observations generated by the global mining network.
Users record how lucky their day actually felt, creating a unique feedback loop between measured randomness and personal perception.
Together these datasets allow Laetus to explore one central question: Can long-term behavioural observations provide useful decision support when certainty is impossible?
Laetus combines several research tools into one platform. Whether you are simply curious about luck or interested in behavioral science, each feature contributes another piece of the puzzle.
Measure how your long-term observations compare with expected randomness and watch your personal Luck Index evolve over time.
Discover how your decisions change, whether your selections become more structured, and how consistent your behavior remains.
Explore more than sixty international lottery formats and compare statistical characteristics across independent random systems.
Compare your selected values with real Bitcoin block nonces and study one of the world's largest continuously generated randomness datasets.
Receive personalized analytical insights based on your own observations rather than generalized predictions.
Track experiments over months and years to discover whether meaningful patterns emerge from uncertainty.
Laetus is becoming a collaborative research platform. Anonymous observations contributed by users help reveal long-term behavioral trends that would be impossible to discover from individual data alone.
The public Community page remains available as a historical snapshot. Current community analytics continue to evolve inside Laetus+, where new datasets and research tools are added regularly.
Laetus is designed for people who make decisions in situations where certainty is impossible. Entrepreneurs. Researchers. Students. Investors. Creators. Professionals. Or simply curious people interested in understanding how they behave under uncertainty.
No. Laetus does not predict future events. Instead, it helps you observe your own behaviour, compare it with independent randomness, and identify long-term patterns that may support future decision-making.
Astrology makes generalized claims based on birth dates or celestial objects. Laetus builds personalized observations using your own behaviour, probability theory, real-world experiments, and measurable datasets. Its conclusions come from observation rather than belief.
Lottery draws are publicly verifiable sources of independent randomness. Laetus uses them as research data - not as gambling. They provide long-term observations that can be compared with user behaviour over months and years.
Explore Supported LotteriesBitcoin Lottery compares your selected 32-bit value with real Bitcoin block nonces generated by the global mining network. It involves no cryptocurrency ownership, mining hardware, financial investment, or rewards. Bitcoin is simply another large-scale source of publicly observable randomness. Learn more.
Laetus cannot tell you what decision to make. Its goal is to help you understand how you make decisions when reliable information is unavailable and to provide analytical observations that may improve self-awareness over time.
Yes. Core functionality is available free of charge. Registered users also receive a free trial of Laetus+, while additional premium features can later be unlocked using activation codes or Laetus Points.
Laetus is an independent long-term experimental project inspired by probability theory, behavioural analytics, statistics, and decision science. Its purpose is to collect observations, test hypotheses, and encourage critical thinking rather than claim absolute answers.
