In the corpus of phenomenological philosophy (as far as it is influenced by the works of Jacob von Uexküll and the debate of phenomenologists with philosophical anthropologists such as E. Cassirer, F. J. J. Buytendijk, and A. Portmann), we find the allegation that one of the fundamental differences between human and non-human animals is that while the non-human animal has a species-specific umwelt, humans have access to (a certain idea of) welt. In this sense, Heidegger speaks of the animal as (...) a being “poor-in-world” in contrast to man as a “world-making” being. Similarly, Merleau-Ponty states that language helps a human person step out of her umwelt into the idea of welt. In the present study, I proceed from the critical reflection of this umwelt–welt distinction, emphasizing the question of the status of this “world.” For a better understanding of this problem, I illustrate it by the example of sign language acquisition by congenitally deafblind people, using phenomenological analysis of intercorporeality and associated phenomena in combination with “dialogical epistemology” as an interpretive framework. Claude Romano’s thesis of “evential hermeneutics” can illuminate this situation, as it explains the vital role various events play in establishing the world through our experience. From this point of view, the “world” plays a role not as a sum of objects in a play of objective causes, but rather it is a transcendental field from which events arise. (shrink)