system
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human
It does brah. And you can test if for yourself. Certain things take longer time to show up, depending on the nature of what you are trying to achieve. 

A simple way to test this is playing video games. Shit manifests very quickly while playing video games. Try it and see. Go into a FPS game and try imagine yourself nailing perfect headshots. You may fail over and over but just wait... as you can persist and believe, you will start getting perfect headshots. 

Try it and see. Remember, you have to be able to conjure the FEELING of what you want and maintain it, even if things aren't going your way.
gpt
I don't know what it is about vidya but manifesting is too easy, I see effort to find challenge because constantly being lucky and just nailing it gets boring.