Question

If two different theories describe experimental observations equally well, can one be said to be more valid than the other (assuming both use accepted rules of logic)?

a) No, both are equally valid
b) The one with simpler equations is more valid
c) The one with more complex equations is more valid
d) Validity is subjective in this con

Answer 1

Both theories are equally valid if they describe experimental observations equally well and use accepted rules of logic.

Step-by-step explanation:

In the case where two different theories describe experimental observations equally well and both use accepted rules of logic, it can be said that both theories are equally valid. The ultimate decider of validity is experimental evidence. If no experimental evidence suggests that one theory is more accurate than the other, then both theories are considered equally valid.

While a physicist may have personal preferences for one theory being more simple, natural, or beautiful, it does not make the other theory invalid. The determination of which theory is a better description of nature requires more experimental evidence.