In other words,
The amp-hour equation is not linear, nor does it handle extremes. For instance, a battery rated for 200 AH may supply 20 amps for 10 hours, but won't necessarily supply 2000 amps for any time at all (i.e., 200/2000 is 0.1 hours, but don't count on the battery being able to supply a current like that for even an instant because of its internal resistance) and it may not supply 2ma for 100,000 hours, because internal leakage may shorten that time considerably.
Dean