How about the fact that medical diagnostic tools remincent of tricorders are coming very close to being reality. The technology to gather data about what lies beneath your skin by waving a device over it exists. Now it's just a matter of finding meaningful interpretations of that data.
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'He who receives an idea from me, receives instruction himself without lessening mine; as he who lights his taper at mine, receives light without darkening me.'
-TJ
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