I am reading the ethereum yellow paper, chapter 7, on contract creation.
There it mentions how the address
a of the created contract is derived and then describes the state after the creation. Namely, it says that the newly created contract's balance is
v+v' (where v is the endowment and v' is
the acount's pre-existing value, in the event it was previously in existence
I wonder, in what case is it possible that account existed before its creation? (Or did I get something completely wrong?)