Husserl on horizons

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Horizons of possibilities (Albuquerque from Sandia Peak)

Possibilities known practically (Belfast, Maine)

Another is the phenomenological point made by Husserl that any profile of an object is surrounded by a horizon of other possible profiles, and the concept of the object is the rule that unifies these profiles. This is amplified by Heidegger into the doctrine of 'world' as an indefinite totality of connections of possible actions and consequences, as known practically and then as theorized.

I rely on this