[wolfgke]

How long is a piece of string?

[ntoll]

Twice the distance from the middle to one end...

[joe_inferno]

I'm unfamiliar with that rebuttal, but it sounds like it has significance. Could someone explain it to me?

[voltagex_]

It signifies an unknown quantity, a string could be any length. I really don't like that saying at all.

[SmellyGeekBoy]

Also, it doesn't really make sense in the context of the question anyway...