A concept from Vernor Vinge's SF masterpiece series ''Across Realtime''

Human Technology evolves to the point where humans cease to exist in any form recognisably human.

(Less sanguinely) Vinge claims that: "Within thirty years, we will have the technological means to create superhuman intelligence. Shortly thereafter, the human era will be ended."

See http://en.wikipedia.org/wiki/The_Singularity

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'''How is this [Tcl] related?'''

[NEM]: Perhaps the creator of this page saw TIP 131?[http://www.tcl.tk/cgi-bin/tct/tip/131]