If they could actually predict the future, then yes, they could mine here only when the pool is lucky and your income would be reduced.
It can't be done.
Noone can tell the future.
It's impossible.
See Doc, you thought that making a new pool thread moderated would avoid this discussion...
It will NEVER go away, sorry. You get paid as a pool op to explain luck and how PPLNS works over, and over, and over ad nauseam, but they will continue to not believe you. There will always be a fresh round of people that insist.