Page 33 - Communications Satellites Global Change Agents
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10                                                         PELTON

           World population has expanded by over 3 billion people in the last 40 years. Fur-
        ther,  according to  UN projections,  the  people  to be  educated  in the next  40  years
        outnumber all those people educated since the dawn of human society. Satellites, in
        terms of expanding  international  business, broadening  international  scientific inter-
        change, increasing media distribution, and extending Internet to the world commu-
        nity,  have often  driven this  curve of  change.
           In fact if we look at the 5-million-year history of humankind and proto-humans
        as being represented by a  10,000-story building that is 20 miles high, we find that
        the last 40 years (the time that we have had broadband global communications ca-
        pability via  satellite) represent  only a matter of  some  inches of  space  on the top
        floor  of this  imaginary  megastructure  (see  Fig.  1.1).
           Yet if we were to envision  a building representing not human history, but the
        accumulation  of  global  information  (Fig.  1.2),  we  see  a  dramatically  different
        building from  this perspective. The top 8,500  stories  of the building of global in-
        formation would have been built since the launch of the first operational satellite,
        and some  6,000 floors would have been added  since the advent of the Internet. In
        the next  15 years, if we maintain the same index scale of "progress," the currently
        projected  amount  of information in our building of global  information  would soar
        outward at an even more astonishing rate. In fact the information in our global da-
        tabase is now  doubling  perhaps every  3 years (and  some  would  argue  it is  dou-
        bling  in only  9 months  time).  Thus, the  "building  of  global  information" could
        mushroom to  160,000 stories (320 miles into space) before we reach 2020, and of
        this information only 2,500  stories would predate the age of satellites. This build-
        ing, which represents our global database, would represent  the ultimate Tower of
        Babel  and  truly  reach  into  outer  space.
          This is to say that in about 15 years the totality of global information systems
        could increase some  16 times in size. Just the information represented  by environ-
        mental data captured by NASA's Mission to Planet Earth, called the Earth Obser-
        vation System, will have increased to nearly 3,000 terabytes of information or the
        equivalent of  1,000 Libraries of Congress. If we sought to organize, store, and re-
        trieve this remote  sensing  information on  a  fully  interactive basis  on  a national
        and international scale, this would create problems of communications  almost un-
        imaginable a few years ago.  (Some people  even fear that without some new stan-
        dards of information  management,  the Internet  as presently  organized could  reel
        out  of  control  due to  simple  "information  overload.")



        BEYOND  THE GLOBAL  VILLAGE  INTO THE AGE
        OF THE WORLDWIDE  MIND

        The satellite, other wireless systems, and fiber communications networks will not
        only assist in creating the oft-quoted "Global Village," but will soon start to  fash-
        ion what might  be called  a "Worldwide  Mind." By the  end of the  21st  century,
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