Things can be predicted with some degree. Not the exact price of Bitcoin or such nonsense. Ironically for this posthalving cycle I predicted top at 70K and bottom at 30K, which nearly exactly hit, even when the top came after bottom.
But yes, things can be predicted, or they seem to be predictions to some, while for some other it is just a calculation with some degree of variability.
I can see I know how to predict some macroeconomical trends and I know how to use it.
I know I can not predict outcome of my SEO, even when into some degree, I can do it (but I think there are real experts, who can predict very well, how my SEO would impact the outcome of SERP; so for them it is a rational calculation, for me magic 8 ball).
I also know that if I get cancer, I can not predict my suvival rate and I can not even cure my cancer medically. But there are experts, who can do such estimations and their estimations will be more accurate than something random.
I want to say that from different angles, the same situation can look differently.
If everything was just random, the world would not exist. If people existed somehow, they would be all equal. But they are not equal. Someone is more rich and someone is poor. Even when they have the same starting point (if that thing is possible). The wealth change is a function of the brain and how good the brain is at estimating the things.
It is the thing like in sportsbetting or poker. Majority of people are losing. They do random bets based on emotions. Everything is for them the magic 8 ball. And then there are people who simply look for some information. The information does not have to be a certainty. Those people understand that the world is stochastic. But there are odds in poker you can count. There are behavior patterns that can be analysed. There are sport odds patterns that can be analysed as well. Based on those data can be made qualified decisions. For majority of outsiders, this seems like magic 8 ball. For the minority of people this make them rich.
Same thing can be applied to all corners of human life. For health for example. For driving. For relationships.
Then they say: oh, you have good genes, so you are healthy or slim or whatever.
Or I was unlucky to meet a dangerous driver and therefore I am in hospital.
Or your wife is fantastic, while mine is horrible etc.
Telling that life can not be predicted is the same like telling that it can not be affected.
It is good for me if other people think it, because the more they give up on their life, the more space and resources are here for me. It is like playing the poker against the players that do random bets, because they do not believe that non-random bets can even exist (or they want to believe in that).
But still, this thinking is simply not correct.
The fact that the world is too complex and that we did not develop the skill to understand it (yet), does not mean that it is generally impossible. Whole human effort as a whole is a way towards better understanding the things.
Thousands years ago the eclipse of sun was a random event. Then the pattern was found and now it is the opposite of randomness.
If you talk to God, you are praying; If God talks to you, you have schizophrenia.