I’ve got a few thoughts about this “problem”. Since we know nothing about the structure of the universe ( many people sure they are but I really doubt), about how exactly human brain works - let’s start from the result of brain’s work. Result is - our culture, society, communication between people and so on. So - our consciousness is smallest part produced by our brain. Human brain is ancient machine for survival and reproduction, thousand of years passes and our society and culture is getting more complicated, our communication getting much more complicated (I’m talking about 3-4k years BC till now).
So now we dive into psychoanalysis: our consciousness is only few things which float to the surface of what we see, the only things which our inner mechanism allow to appear for successful survival (here I mean not only real SURVIVAL but our adequate interaction with people and society). Other things are hidden but also affect our lives, our decisions and our relations. Superficially and roughly speaking human being has huge amount of unrealised aggression, love, despair, fears, illusions and so on at the same time and the only way to function normally is to block part of it (here I mean things inside which constantly happens without external irritants, is our reaction to irritants are normal under certain circumstances - another huge topic). Which parts are blocking most (or completely) is result of our genetics and childhood and society.
I want to mention separately such a thing as an illusion. It is directly related to the topic under discussion. Illusion is when your expectation from your actions or from external events completely not related to the normal reality. As examples: you think money will make you happier, or another person will make you happier, or if you will know more about how human brain works you will be able to make you happier, or if you build real AI it will solve all the problems of humanity and make you happier, or if you marry (or give a birth to a baby) - it will solve all the problems in relations and make you happier, or if you buy bigger house (car, phone, yacht, plane etc) it will make you more happier. As you can see - illusions are everywhere, in any human action.
So from this perspective I see the next statements:
- Everything is predetermined - so we do not have options, we are puppets and we do not have any responsibility for our lives. It makes life easier.
- Everything is NOT predetermined - it scares. The responsibility for live and death are terrifying and it’s a reason why first statement more popular.
In reality you can’t claim that everything is determined or not. You just don’t know enough to be sure. Our observations are insufficient, our knowledges are changing every day, and human brain not perfect to make right conclusions about the world.
So I’m thinking that reality is determined and not determined at the same time. We think in stereotypes which has time frames (beginning and end of universe, birth of start and it death, sunrise and sunset and so on) and it’s normal, it’s a reason why we survived - we ( as any other intelligent animals ) understand that any process has initial data and result which determined by this data. And I pretty sure that human brain unable to work in other way.
Sorry for my bad english - I would like to say a lot more, but I can’t.