The theory of conjuring and time travel

[nkafkafi]

No: HPFGUIDX 102971

How does the magic of conjuring works, and why are conjured objects temporary? This can be 
easily explained if we assume that it is possible to send OBJECTS back in time even without 
a time turner. Here is how it works: At 10:00 o'clock DD needs a chair. So he decides that 
at 11:00 he will send a chair one hour to the past. This works and the chair indeed appears 
at 10:00. At 11:00, when DD has finished with the chair, he carries out his former decision 
and sends the chair back in time one hour. The overall effect is a chair appearing at 10:00 
and vanishing at 11:00. 

This looks like magic, and of course it IS magic, but I couldn't find anything wrong with 
the logic. A paradox emerges only if by 11:00 DD regrets his former decision and does NOT 
send the chair back in time. What happens then? I'm still working on it...

Neri