One of the
few advantages of metaphysics over physics is freedom. We are free to explore ideas that physicists
are not free to explore, at least not within their domain as physicists.
This
freedom, however, is not a valid excuse for sloppy thinking. Precisely because we rely more on thinking
than on experimentation, our thinking is required to be careful, methodical and
rigorously disciplined. These are
attributes that are not commonly assigned to philosophy, but they should be.
Now for the
main point:
In our assertions,
there are varying degrees of certainty which we can claim. In descending order, these are:
Absolute
certainty (I think; therefore I am).
Certainty
beyond a reasonable doubt: Dissenting
views are implausible, even foolish.
Flying unicorns may exist, but I assert that they do not.
Strongly
probable: The world will still be
here tomorrow. It could end, but I’m
still going to plant the crop.
Possible: World War 3 may break out this year or next,
or in our lifetime. I can’t prevent it,
and I’m not going to build a bomb shelter, but perhaps I could keep my pantry
stocked.
Unlikely: My book may sell well this year. I’ll try to promote it, but I’m not
mortgaging the farm to finance a marketing campaign.
Very
unlikely: The world may end tomorrow,
so I will spend all my money on a party tonight.
Impossible: I will invent a perpetual motion machine.
The standard
of scientific proof is to be able to persuade a reasonable skeptic.
The standard
in metaphysics is to persuade a reasonable skeptic of where your assertions fit
on the scale of degrees of certainty, listed above.
If you
correctly identify where your metaphysical assertions (or speculations) fit on
such a scale, then you are much better equipped to discuss them, and to know how
strongly to defend them.
It also
helps you to identify the strengths and weaknesses of other peoples’ assertions,
and to engage in fruitful discussions about them, and to learn from those
assertions, whether or not you dispute them.
I think that
it is strongly probable that my
statements in regard to all this are correct.
.
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