I couldn't do this to someone else, it wouldn't be fair.
Now, maybe we could clone Emma Watson and put my brain in her body, then I'd be an immortal Emma Watson clone. Awesome. (broke your logic)
When everyone is imortal theres pretty much no more need for cloning technology, so you'd have to figure it out yourself, furthermore your brain would deteriorate at the normal rate.
Poo
This post brought to you by the power of boobs. Dear lord them boobs. Amen