What I wrote yesterday can be interpreted in two ways. One option is to take it literally, that is to work from a laptop only and thus be mobile. Of course this is a process and it takes effort to achieve such a lifestyle. A pioneer and master in this field is Tim Ferris, author of "The 4-Hour Workweek". The book title may sound somewhat utopian, but so does your tropical beach luxury villa. It is certainly an obtainable goal to work far less and rather than characterizing 4 hours as unrealistic, consider it a direction to head for.
The second option is to just view the idea of owning the world as part of a certain mindset. I already wrote about the importance of sharing, but it is far more than just making better use of stuff. An abundance mentality as described by Steven R. Covey leads to a totally different way of interacting with others. It takes you from "what's in for me?" to "what's in for us?", which closely related to the minimalist mindset "what matters?". From this point of view the dream house starts losing a lot of its attractiveness. Even if you decide not to travel the world instead: Once you are free from the desire for material wealth, you are free to venture to new shores.