https://listverse.com/2019/06/04/10-people-who-successfully-...
> I'm calling BS on all of this hand-waving.
Maybe work on the math a little.
> Seriously, how much do you think the miniscule odds of winning can be increased via these methods?
There are multiple methods that can be and have been used, they all have different outcomes on Expected returns.
> I want a numerical answer.
Again, maybe you might want to work on the math a little yourself - on a specific ruleset (or on a family of rules using some abstraction) .. there are tools that can help you; mathematica, R, etc.