Comeon... i invested a week ago
Nice. Consider yourself lucky.
and since then i only saw my investment crawling below my invested amount. Now i saw the chart and it looks like the advantage is there seeing the actual investment. I doubted that before for obvious reasons.
just-dice returns are bursty. They are small and quiet for long stretches then have wild swings when whales show up.
It was hard to imagine that all the games happening in the last week didnt show the house advantage. But it was that way.
It seems you are looking for some sort of pattern in the returns that reflects what you think it should look like based on the house edge. The issue is, with such a low house edge, you really can't count on being able to "see" the house advantage. Furthermore, when a whale shows up, you can't even begin to see the house edge because it's negligible compared to the vol.
I realize I am being somewhat discouraging, but that's because you seem to have unrealistic expectations from just-dice. The returns from the last 24 hours will not keep up. Returns will often look negative and for long stretches. Some of the big investors were negative for *months*. That doesn't mean the math is wrong, it just means your expectations are wrong if you think this should not be possible.
And i found a debate about allowing investors to chose the risk of 1% to be changed. This settings wasnt implemented at the end?
Correct. If you want to reduce your risk, it's easy. Divest a portion of your invested amount, and hold the divested amount in cold storage. Voila, reduced risk, reduced return.
I suspect most of the pushing for this feature was from people who were simply overinvested and weren't comfortable with the resulting volatility.
The variance is of course smaller for the martingale, which is bad news for the player. The player has a negative ev and therefore needs a high variance to have any chance at all. The martingale strategy is therefore as safe for the house as single bets because even though the edge is smaller, the probability of losing much is also smaller.