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How Will Physics End?
What of the future of this adventure? What will happen ultimately?
We are going along guessing the laws; how many laws are we going to
have to guess? I do not know. Some of my colleagues say that this
fundamental aspect of our science will go on; but I think there will
certainly not be perpetual novelty, say for a thousand years. This
thing cannot keep on going so that we are always going to discover
more and more new laws. If we do, it will become boring that there
are so many levels one underneath the other. It seems to me that what
can happen in the future is either that all the laws become known ---
this is, if you had enough laws you could compute consequences and
they would always agree with experiment, which would be the end of the
line --- or it may happen that the experiments get harder and harder
to make, more and more expensive, so you get 99.9 percent of the
phenomena, but there is always some phenomenon which has just been
discovered, which is very hard to measure, and which disagrees; and as
soon as you have the explanation of that one there is always another
one, and it gets slower and slower and more and more uninteresting.
That is another way it may end. But I think it has to end in one way
-- Richard Feynman