Bitcoin addresses are generated through a process called hashing. The process adds an extra layer of security to transactions. This means that no two addresses can be the same, and someone else can't spend the funds in either one. In order to prevent this problem, the Bitcoin address should only be used once.
The process of creating a bitcoin address is very similar to that of creating an email address. It is created by generating two keys, one public and one private. Each of these keys is unique and is generated after every transaction or operation. This process is done to ensure the privacy and security of the network.