In October 1996, TLE published a “discussion document” which, in my opinion, was to initiate the most important change in the modern seismic instrumentation era. That document, Ian Jack's “System 2000,” more than any other article, paper, or event that I can think of, can be credited with the start of a whole new movement in land hardware. I will henceforth somewhat irreverently refer to this document as S2K.

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