There were two ways one could make clones.
The first method was where you refined a dead body to become your clone using a piece of your soul.
One's soul couldn't become united with the dead body completely, since that wasn't your body, Alex knew he wasn't that.
Which was why he believed himself to be the second type of clone. One that was made using various resources, that had a soul grown in it, even without using the owner's soul.
This made controlling the new clone very hard, but not impossible.
However, Lady Ren was saying that it was impossible for him to be the second type of clone as well because of the resources that would require to make his body.
Then… was it really true? Was he really… not a clone?
If Lady Ren had exaggerated the requirement for a body such as his by hundreds of thousands of times, it would still fall short of the number of players that would have to be cloned in this world.
So, in case you guys still didn't understand. This is the Real Alex. the one back in 5th continent, the one that had been with you for the last 500 chapters was the clone.
The only time you saw him was likely the first three chapters, this was him. after the first time he cultivates, the souls are switched and he is suppressed.
there is still information to be revealed about how it all happened, how his soul alone wasn't suppressed as well as everyone else's and such. as well as the purpose behind why he was cloned at all.
all will be revealed in due time.