In philosophy, a razor is a principle or rule of thumb that allows one to eliminate ("shave off") unlikely explanations for a phenomenon, or avoid unnecessary actions.[1][2][3] Examples[edit] Razors include: Alder's razor (also known as Newton's Flaming Laser Sword[4]): If something cannot be settled by experiment or observation, then it is not worthy of debate.[4] Einstein's razor: "The supreme g