[lit-ideas] Re: Defining the length of a meter with reference to time [was Re: Censorship]

Robert Paul wrote:

"[Meter defined by light travelled over a period of time] may be what it is
now, but as this is a contingent truth based on stipulation (is this what's
meant by 'synthetic a priori'?), it could change next week."


I agree and so my original comment is misleading.  I should have said that
the current common definition of the length of the meter refers to time.  My
point, however, stands: one cannot define the length of a meter except by
ultimate reference to something that is not itself a length.


Sincerely,

Phil Enns
Toronto, ON


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