Abstract
Space and time have been explained not in terms of physical entities but in terms of practice, that is, based on communication, which includes spacetime code in the _A-series_, _B-series_, and _E-series_. Each code has a unique grammar, and it progresses through _boundary operation_, i.e., setting the limit and transgressing it, but in each distinct way. The purpose of this paper is to introduce the notion of _event matching_ to elucidate the mechanism of meaning-making through _boundary operations_. Biological spacetime production is an incessant _effort after meaning_ in the adaptive process, where the _dia-metric_ scale in the _E-series_ necessitates anticipatory (retrocausal) actions in the steps of interaction. This paper suggests that the three terms — _event matching_, meaning making, and spacetime production — are synonymous with each other in biological worlds. Evidence-based examples are provided to support the arguments.