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If a person is deciding whether to do something and says "I'll flip a coin, heads I do it, tails I don't" does that fall under the prohibition of "don't divine with signs" in Vayikra 19?

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I don't know the Halachic literature here, but I suspect that if the flipper's attitude is "I am using this perfectly arbitrary method to get to a definite decision because I need to do so, in the absence of a non-arbitrary reason to go one way or the other," that'd be fine, while if the attitude is "Which ever way the coin lands, that's a supernatural sign that that way is better," that'd be problematic. – Isaac Moses Feb 11 '14 at 16:42

Chicago Community Kollel - Parsha Encounters 4 Shevat 5768 in the name of Rabbi Yisrael Belsky Shlita, says that one may flip a coin to make a decision.

When one flips a coin and makes a decision based on the results, he does not feel his decision is necessarily the right thing to do. Rather, he was undecided, and he is leaving his decision up to "chance"

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Just as well, as I flip coins to decide which beer out of a selection on my shelf to drink that week. – CashCow Nov 2 '15 at 17:59

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