If a person is truly interested he will persevere  [ when I was 16, the
thought that little me ,in the attic of my fathers house in  S.Wales, could
at the press of a key alter the potential between two ends of a housewife's
wet washing line in far away Texas was so absorbing that I have been making
things to do just that ever since]

Nicely put! Sounds like the butterfly effect :)

http://www3.telus.net/sthed/chaos/

73 Scott