# Prediction.

Discussion in 'Physics & Math' started by TheFrogger, Mar 23, 2017.

1. ### TheFroggerValued Senior Member

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1,030
Please think of a number. Add one to this number, then subtract the number you were thinking of minus one.

Put simply: (x+1)-(x-1)

...it is the question that drives us.

3. ### exchemistValued Senior Member

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7,470
Most of us will recall that one from the playground at primary school.

5. ### TheFroggerValued Senior Member

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1,030
Okay. Is there a way to alter the equation to discover what number the person is thinking of...?

7. ### OysteinRegistered Senior Member

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890
This is what physics and math have devolved into in today's educational system, at least here in the US. Except that most HS kids nowadays couldn't write down the descriptive "a = (x + 1) - (x - 1)", much less solve it.

8. ### exchemistValued Senior Member

Messages:
7,470
Are you serious? There are lots of variants of this. But they all come down to subtracting the number thought of, somewhere along the line so as to confuse the victim, so that all that remains is due to the extra numbers provided by the questioner.

P.S. Oh sorry, I see from your cesspooled thread today that you are a nutcase. I'll leave you in peace.

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