It is total bulls***. The guy started in this video with 20€ (no whale exactly), started betting all kind of straight ups and splits and even progressions, went up to 240€, then started betting all over the place and lost it all at the end of the video.
His so called "system" was simple MIRRORING on the wheel with distance adjustment from previous spun number. It does not work. Period.
He has no video where he can prove this on a real roulette with Real money. If he had his deposits would be way higher and his winloss ratio SKYHIGH.
The one he published was basically a 10 yo boy entering the Casino for the first time, trying to apply some bet discipline and selection on a system, then went haywire and lost it all.
No stop loss methodology, way too many numbers with a mixture or splits and straight ups and probably no accounting to tell him his current MM status.
https://www.youtube.com/watch?v=QjW88mefWy8On your other videos all I see is plain luck and inconsistent bet selections. One could in a way suspect he uses a primitive form of distance differentiation between two latest spun numbers but even that methodology is a doomed one, ESPECIALLY if you use a progressive non-methodical progression during a session.
The youtube is full of such videos. You just spend a day and you ll see. Most of these guys show their few winning sessions but deny you their losing days which are really tough ones on them I believe. I have a video where a guy deposits €70,000;- and goes up and down until he loses it all. A real pain to watch him throw away good money on mere Obsessive compulsive Gambling disorder
Just to clarify some matters on your headline. There is no such thing as a roulette-logarithm. The latter part is merely a mathematical term where the logarithm is an inverse function to exponentiation. Any kid having studied math in elementary school should know this.
You probably meant a ROULETTE ALGORITHM which a completely different matter and were a main formula of various factors can be supported by sub algorithms that all-together solves a complex problem.