Not sure what you mean Pokey it is precise ... lets see if I can rephrase it

"A single quantum particle can be described by a wavefunction that spreads over arbitrarily large distances; however, it is only ever detected in one place at which point the waveform collapses to a zero in all other places the waveform spread."

Last edited by Orac; 05/04/15 03:00 AM.
I believe in "Evil, Bad, Ungodly fantasy science and maths", so I am undoubtedly wrong to you.