Always two of them there are. Time and space. Spatial separation has the great benefit that it frees you from separation in time, which is technically and menta

Always two of them there are. Time and space. Spatial separation has the great benefit that it frees you from separation in time, which is technically and mentally more challenging. If you want or need that anything can happen at any time on either side, you end up copying (and ideally closing the door after). Very much like Erlang does with the Beam.