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  #11  
Old 03-04-2018, 05:05 PM
c.d. c.d. is offline
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It is interesting that if everybody agrees that something can't be done (i.e., a sub four minute mile) and then it is done then nobody can make that argument anymore. Ripperologists should take heed.

c.d.
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  #12  
Old 03-04-2018, 05:36 PM
Robert Robert is offline
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A very rough calculation shows that the time has gone down by an average of 0.25 seconds per year (note AVERAGE). Suppose a similar average is maintained in future : obviously there will come a time when no one can run any quicker.
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