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MARK C is Counterfactual Intelligence for decisions that matter. Describe a decision, model the alternatives, then simulate thousands of plausible futures. MARK C quantifies uncertainty, exposes critical assumptions, measures robustness, and its Reversal Engine reveals what could make your preferred choice flip. No black-box AI opinions—just decisions you can inspect, challenge and stress-test. See what happens before you decide. Have you C MARKED it yet? ⚡
We built MARK C around a question that kept bothering us: what if the most useful thing a decision tool could tell you wasn’t what to choose—but what would make that choice wrong?
MARK C is a counterfactual decision-intelligence platform. Give it a decision and it structures the alternatives, simulates thousands of plausible futures, quantifies uncertainty, stress-tests assumptions, and uses its Reversal Engine to identify the conditions under which the preferred decision could change.
We deliberately don’t want MARK C to be another AI tool that confidently hands you an answer. The goal is to make the reasoning, assumptions and uncertainty visible and challengeable.
This is our public beta, and that last word matters. We know there’s plenty left to improve. We’d genuinely love the Product Hunt community to push MARK C, break it, challenge its assumptions, question the UX, and tell us what you wish it did differently. Critical feedback is just as valuable to us as an upvote.
We’ll be reading the comments and using what we learn here to shape the next versions.
So throw a real decision at it and tell us what happens.
See what happens before you decide.
Have you C MARKED it yet? ⚡
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About MARK C — Counterfactual Intelligence on Product Hunt
“MARK C — See what happens before you decide.”
MARK C — Counterfactual Intelligence was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #145 on the daily leaderboard. MARK C is Counterfactual Intelligence for decisions that matter. Describe a decision, model the alternatives, then simulate thousands of plausible futures. MARK C quantifies uncertainty, exposes critical assumptions, measures robustness, and its Reversal Engine reveals what could make your preferred choice flip. No black-box AI opinions—just decisions you can inspect, challenge and stress-test. See what happens before you decide. Have you C MARKED it yet? ⚡
MARK C — Counterfactual Intelligence was featured in Productivity (659.6k followers), Analytics (173.5k followers) and Artificial Intelligence (477.5k followers) on Product Hunt. Together, these topics include over 291.5k products, making this a competitive space to launch in.
Who hunted MARK C — Counterfactual Intelligence?
MARK C — Counterfactual Intelligence was hunted by Arvind Shyam. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Arvind Shyam