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More relevant to this list is the fact that you really should
not interpret F=ma as a statement that F causes ma or vice
versa. Neither comes before the other, and you can't have
either without the other ... so neither can be considered
the cause of the other.
It has been suggested that in theory you could say F causes
ma *and* ma causes F. This exhibits the correct symmetry.
OTOH almost nobody likes this suggestion. All the witch
doctors want the arrow of causation to run one way and
not the other.
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