On Apr 6, 2016, at 10:22 PM, Fred Cisin <cisin at
xenosoft.com> wrote:
 ...
 Entropy: Could the rust on the cookie be de-oxidizing, and turning back into non-oxidized
ferrous compounds?  
No.  If that were true, iron ore would spontaneously turn into iron.  Unfortunately, that
does not happen.
        paul