**Thought experiment:** What if we wanted to simulate the measurement of a qubit using a classical computer ? Just like we can simulate the motions of atoms? We could - in theory - simulate the time evolution of the many body (many qubit) Schrodinger equation, perhaps for a small system even in practice : - What would we see if we would simulate the measurement ? - Would we see the mysterious wave function collapse ? - What would be the simplest (physical) system that we would need to simulate in order to see (in detail) what happens when we measure a qubit (when a the function collapses) ? Do we have enough computer power available to do that ? - Could we even comprehend the answer /data (provided by that simulation) ?