World From Top, By Klaus Lerdorf

• Heidegger
Martin Heidegger, meanwhile, argued that "the surrounding world is different for each of us, and notwithstanding that we move about in a common world". The world, for Heidegger, was that into which we are always already "thrown" and with which we, as beings-in-the-world, must come to terms. His conception of "world disclosure" was most notably elaborated in his 1927 work Being and Time.
• Freud
In response, Freud proposed that we do not move about in a common world, but a common thought process. He believed that all the actions of a person is motivated by one thing: lust. This led to numerous theories about reactionary consciousness.