IS high energy physics real ?

From: eighth man (eighth_at_libero-dot-it.no-spam.invalid)
Date: 10/02/04 

Date: 2 Oct 2004 16:33:30 -0500

I have a few questions:

1) I read that particle physics uses
accelarators and computers to compare
results according to Feynman diagrams.
According to the precision these diagrams
may be 70 or 40000 and eventually millions
to trillions all very complex to calcuate.
At what point (decimal point;) will scientists
think the precision will be enough ? (a trilllion
feynman diagrams?) And if so will they be
even able to calcuate it ? and even after won't
they be curious to know if a higher precision
could lead to something else ?

2) after the grand theory of everything is
achieved maybe 300 years from now, will
scientists still study all the theoretical structures
anyways even if it has no use for physics anymore ?

3) particle accelarators, theories, computers
etc. seem quite distant from reality... it makes
me think sometime"is it real ?"
I mean there is only one level seperating a
virtual reality program from reality (the program)
whereas in particle physics we have about 5 or 6
(accelerators, theories, computers, calcuations etc)

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