Roulette Burn the House to the ground by betting flat stakes!

EC's, dozens, lines, columns...etc
All of them are subject to HE, if what probability indicates would happen every time then we would lose exactly the amount which equals the HE for ER (2.7%) or not...because if we would know that after every RED is the turn for BLACK we would bet accordingly.
Of course, this is far from the truth, that's why variance is a coin with 2 sides, could make you win if you go with the flow, or could make you lose if you naively believe that the outcomes must balance during your playtime!

There are always smaller or bigger deviations from what probability indicates, but there are always!
The only practical value of probability is to determine the degree of deviation.
If you think a strategy which applies regression towards the mean as the best you can do then you'd better go flip burgers at MacDonalds!
Who knows how long one could wait in order for an extreme deviation to occur and after this to bet very few bets while expecting the deviation to be decreased in the following spins.
Till a rare event happens (great deviation), a lot of smaller ones take place and if you back them then the big one would be the cherry top!
Many bet against the deviation (futile), while some others bet with the deviation but use progressions which are making them lose in the end.
When you go with the flow you don't have to raise your bets at all because you are backing the side which is appearing most at any given moment.
By applying a positive progression would make the losses cost more money than the wins, we don't have to care about the sequence of the outcomes, but only for the total amount, their quantity.
Why are you trying to tame the waves when you can ride them?!

There are ways to expose accurately this phenomenon and I'm not talking about guesswork!
Do you expect me to tell you every single detail about how you could do it?
Don't tell me that such unbalances (smaller or greater) are not on daily schedule!
Every single time you are playing roulette you could notice such unequal distributions.

But what is the source which generates such phenomenon?
You will be surprised by how simple is the explanation!

Just try to imagine that you should carry one by one 37 eggs inside a small storage room.
The first layer of eggs can be laid down without any difficulty, but the more eggs you are laying down the less space you have to step and place the new eggs on the floor.
Eventually you are going to step a few eggs on the process and you will find out that you left with roughly 2/3 of what you had...

It doesn't have to do with flawed wheels, the universal bias is called LAW OF THE THIRD!
This is the beating heart of the game!