Random and clone were a poor choice of words.
Let's say that someone hashed something, a book, a phrase, a word, etc... and used that hash as a private key to generate an address. You happen to generate the same private key, in the same manner. If there is a balance on that address, and you have the key, do you own it? The mantra, "Not your keys, not your coin" comes to mind.
I would advise you to first read this article to talk about regenerating any private key. This is only possible in theory.
There are 2^256 private keys out there: how big is that number?
https://bitcointalk.org/index.php?topic=5147514Or search for bitcoins on keys.lol, maybe you are a lucky person.
https://https://keys.lol/bitcoin/904625697166532776746648320380374280100293470930272690489102837043110636675/bitcoin/904625697166532776746648320380374280100293470930272690489102837043110636675