Jan 182013
update past_memories pm
set    pm.event_details = (
           select fi.event_details
           from   false_information fi
           where  fi.event = pm.event
);I find spotting changes in other people's memories easy to do; 
if only I could notice it so easily when doing so myself...

It’s all too easy to have your memories of an event altered; worryingly you’ll probably never realise this has happened to you!