my point is, there will be time when big companies,hedge funds, will have so much computer power and so strong AI/algoritms that they will simply crash all the "small" (retail/individual) traders and the latter won't be able to survive in trading at all
but the question is when is this going to happen?
Never. I don't trade using an algo but know quite a bit about the types of a models that are used by the algo traders. I know a guy who is senior in an algo hedge fund and asked him how complicated the algos they use are. Of course we wouldn't tell what they were doing, but he said the algos they use are not really that complicated.
I figured that was the case because as the models are always subject to biases and all kinds of other problems. The more complicated the model, the more likely you are going to inject biases or overfitting.
If you want to check out some cool data science/AI problems with solutions check out a website called Kaggle. The have all sorts of challenges and some of them apply to trading and they offer cash rewards for the winner. They often have interviews with the winners and the winners explain what they did. You can learn quite a bit.
Just remember, all models are false, but some models have value.