Hypothetically, in a paper trading, fantasy, mind, simulation account...I have grown a small, initial, trading account into a Billion.
Numerous times, on separate, different, occasions.
It's just a relatively simple matter of compounding and growing the account -- assuming you have the skill and formula in place.
But to grow an account into a billion in real life is another story.
Is it even possible to send a billion dollar options order in one strike price, in one expiration through the system?
That would be like trying to flush the turds of 9 elephants, 7 rhinos and 6 giraffes into a toilet at once. It will get clogged, to say the least.