Well realistically if you are doing that you are 1 in a million so with a PF of more than 1.4.
Most people that are profitable would want first to save up to add to their account and anyway join or start a hedge fund, and risking 30%, even if it's all profit, might make that not possible.
It's more theory than anything, I do not think it's really applies to anyone, maybe just a few delusional people that got lucky over a short period.
Idk. Might be more than 1 in a million, results are not public.
You wouldn't start a restaurant with 10k. You'd look for external investments.
Maybe this 10K into say 100k is something one would do early on, taking big risks.
If it works out good, if it does not have another broker with which there is never a drawdown of more than 10%.
2 accounts: 1 high risk for aggressive scaling. 1 slow and steady to maybe use to start a fund (I have no idea how easy or hard this is, not sure how much performance actually counts).
Maybe use this strategy but with putting less than 10% at risk (1000/4000) rather than the whole 4000.
In any case, everything should be planned carefully, all calculated in advance, one should have a plan B and C.