These come in here, here, and here. When someone inserts coins, or a little old lady crosses the empty subway station floor, an event arrives here, here, or here. Each logic module handles its incoming events, does its work, and sometimes sends events, or 'bowls of hot noodle soup' as we like to call them, to other modules. Each logic module is a separate finite-state program, written as an SMT agent. Each logic module has its own queue for incoming events.
Events come from other logic modules, or the outside world.
The SMT kernel multitasks the various finite-state machine programs, giving the illusion of parallel processing. The reader will just have to imagine the diagrams. Said when the correct response is either too complicated to enunciate or the speaker has not thought it out. Often prefaces a longer answer, or indicates a general reluctance to get into a big long discussion. Sometimes used as an expression of disagreement.