anybody there?

Question

anybody there?

anonymous · Answer

Sí, estoy aquí. ¿Tiene una pregunta?

anonymous · Answer

Unless you make a measurement of the system, you will never know.  Also according to the Copenhagen interpretation of quantum mechanics, the state of a system will be in superposition until the wavefunction is collapsed by a measurement.  Hence a person will be both "there" and "not there" at the same time, until one makes a measurement.  What's more, there will be a finite (but extremely small) probability that everyone will be everywhere at any time, and so if you wake up one morning and everyone is in Hawaii or the Andromeda galaxy, dont be too alarmed!