To a phenomenology of possible human worlds: existential ontology of designing

Phenomenology justifies the ontological status of the transcendental subject performing "Assembly" human reality of missing elements of existence, project opportunities. Formation of an alternative future of a person who is designing his new existence brings value to the phenomenological approach. Existential phenomenology constitutes a separate methodological programme, which is based on the synthesis of phenomenological and existential approaches. Philosophers are busy with thought-experiments when they are trying to place possibly-existing into the context of ought. They explore the conditions of the possibility of human being not just creation, but a certain ought creation, which is seen in existential terms. The result of the study was the following: for the first time, the author introduces the concept of a "justified the ontological project," which characterizes the ought possibility of being human as a particular being, implemented in the particular circumstances of time and place. In other words, it is the knowledge of what "could become" its genesis and what it "should be" in terms of metaphysical universals in a certain term. A philosopher, reflexing on his metaphysical grounds, and an ordinary man with his everyday activities combine their efforts in designing of a project of existence by engaging in a dialogue and creating a space for coexistence, in which makes possible their genuine and free existence.