You have beeen cyrogenically frozen. While in this state, scientists replicate your entire body, perfectly. In addition, they replicate your brain in a perfect manner. All of your memories, all of your experiences, everything about your brain is identical.
Then both of the bodies wake up at the exact same time. Which body do you wake up in... and why? What makes you... who you are?
If a question like this has already been asked in the field of philosophy or science I'd love to hear what replies or theories there have been. It's just something I thought of the other day...