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Message: <blockquote data-quote="[OMENRPG]Ben" data-source="post: 5644942" data-attributes="member: 6677983">You're right, not literally "breaking" the laws of physics, but providing the appearance of doing so. Nanorobots could provide a constant upward or downward force, effectively increasing or decreasing the weight of an object. Using recycled hydrogen in the air could be used as the self-replicating robot's power. Nanotech in the medical industry is already providing some surprising effects, and if taken to the extreme in a far-flung and sci-fi future, it is easy to imagine that nanotech could be used to hunt down and remove free radicals within the body, rapidly reconstruct cells, and even replace decaying organs or cease aging. At a truly extreme level, nanotechnology could be used to manipulate the gene structure either pre-birth (in order to engineer the perfect human) or during the person's lifetime. This propels many of the ideas of transhumanism.If nanomachines would be allowed to mine nearby natural resources, recycle those resources, and repurpose them into whatever the society needed, then a scarcity economy would no longer exist. <a href="http://en.wikipedia.org/wiki/Post_scarcity" target="_blank">Here</a> is a useful summary describing post-scarcity economic possibilities, including the disestablishment of money and traditional vendors. When I refer to "near-indestructible" buildings and biodomes, high-density carbontube nanostructures with self-repairing structures are something that are already being worked on, and in another 100 years, could very well be the norm. I'm sure that something as devastating as a nuclear bomb could destroy it, but damage seen from typical building rubble would be all but gone, and quickly repaired. So, while I appreciate your skeptical stance on the subject, there are many (including myself) who believe that the things that are listed are not only possible, but are currently being worked on.</blockquote>

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