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A comment on Why Email isn't Dying. Parent comment

Re:Why Email isn't Dying by gjm11 on Tuesday October 20, 2009 @07:35AM (#892210)
Not unless either Twitter or email equals zero.

(Unless you take "orthogonal" and "parallel" to mean "there's a vector in one and a vector in the other that are orthogonal/parallel".)

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Re:Why Email isn't Dying by DrJokepu on Tuesday October 20, 2009 @09:10AM (#892300)
If I remember correctly, two lines being both parallel and orthogonal is quite possible in Hyperbolic (Non-Euclidean) Geometry.
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Re:Why Email isn't Dying by 10ren on Tuesday October 20, 2009 @09:27AM (#892316)
Parallel lines of longitude converge orthogonally at poles.
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