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Nah this video just speculation and the basic how the slot is working and explanation for the reel slot, all about RTP casino used still mystery so just hoping you are on the right casino. @mu_enrico ask about how we can verify RTP was the same information like the provider/casino provide, and we can verify just the same like original game while you can verify by your self while the game using like SHA-256.
No one can really verify unless you have the same game software casino has been set up from the provider on the casino, remember the contract between casino and provider wed don't really know that did they have some requested to change the RTP so maybe the provider release the slot another version with different RTP they are offering on the service, but all just speculation no one can verify all you can do while playing just trust them~XD
Can you recommend a better one? I don't think it's "just speculation" because what he's saying is true(is there a mistake in that video, in your opinion?) and some things are not that obvious for many gamblers.
Also, from what I know, in some cases a site
can choose from different RTPs from provider, but what they can't do is changing the RTP at will. Do you agree?