A few days ago a friend showed me his obsidian pendulum. Me, as a good skeptic, I immediately asked some questions to see the answer. Surprisingly I realized that it was not ambiguous answers, but it was a yes or a not. In fact important is how the questions are asked to obtain these simple answers. However, at the end I asked to try it myself and the answers have left me speechless: at the first glance seemed correct answers. Then curiosity led me to inquire more about it.
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