Kristen Berman

10. Japanese toilets often have a sink on top, allowing you to wash hands with water that's reused for flushing, saving millions of liters of water yearly.

Growth, sharing, and word-of-mouth matter for consumer products because 49.9% of a user’s decision to adopt is informed by their peers (with the remainder being the product’s intrinsic value and utility). The internal voice in a consumer’s head is constantly telling them, “You’re supposed to do what everyone else is doing.” If you can figure out a way to manufacture that perception for your product, you will have eliminated the most important confounding variable in your testing process, which enables you to determine viability with much greater clarity.

Does astrology work? We tested the ability of 152 astrologers to see if they could demonstrate genuine astrological skill. Here is how the study was designed and what we found (including a result that really surprised me): 🧵