This is an interesting one, and one you might know if you're a fan of one of my favorite authors, Steven King. Amazing horror right there, my friend. Anyway a placebo is like as follows:
I have a hundred men and woman do an experiment on some medicine. I give fifty of them the real medicine and the other fifty a pill that looks exactly like the medicine, but has no effect. I tell both groups they are taking the medicine. It's headache medicine, for example. 45 people from the first group (the real medicine) say their headache went away. 20 people from the second group say their headache went away (placebo medicine). See? By telling them it was real, they thought it worked. A helpful trick.

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Simon's lessons.
AcakWelcome, welcome, all is welcome to Simon's lessons. What you learn here, however, won't be as what you learned in your average education. This, my friend, is "a dark lesson", as one would say. I won't spoil to much now, so why don't you join me in...