When I read about how most of our thoughts are repetitive, I wondered if it would be possible for us to have a thought that is completely new or original by will. Is there some way we can have unique thoughts whenever we wish to?
Please note that this question does not focus on our brain's mental capacity or free will to be able to think of something original. You could think of it something like asking you to paint something original; I am not asking if you are even able to paint in the first place, but instead how you would paint it if you could.
Also you should ideally be able to think of something new completely by your own in your consciously aware and normal self, without relying on external factors like taking inspiration from your surroundings or words from a recent/ongoing conversations, looking at the content open in your device, using any drugs or consumables, being affected by strong emotions etc.
Edit: Elaboration in last paragraph
I guess if getting new data is not allowed, then interpolation or extrapolation would be the next best option. Interpolation would be connecting existing thoughts to form or find new ones in between. Extrapolation would be following a train of thought to its ultimate end. This could be done in either the diffused or focused mental states. I like to draw up diagrams for this so I can see the blank spots to fill or direction things seem to be going.
There is also the semantics of the question. It's actually quite an ancient topic, where our thoughts come from. What does "original" mean? The thought originating in our mind, or from some higher realm? I won't go too deep into this, just bringing it up to think about it. The only thing I wanted to say is that maybe our mind is not entirely free and agentive, but actually there is a "darkness that comes before" to reference The Second Apocalypse which we can't conquer, but are conquered by.
On a lighter note, and from my own experience, it is definitely possible to generate new thoughts outside of that diffuse cloud of repeated thoughts formed on the storehouse of experience accumulated so far in our lives. Following practices of mindfulness, we can learn to recognize the noise of our mind and separate those "thoughts" from what we might call more agentive thoughts that we can control over, wherever they come from. I do meditations in these styles and achieve a mental state beyond the diffuse and focused, kind of inverse to dreaming (cf. turiya for this kind of formulation of a fourth state of mind). In this state, you can come to understand things which you could probably never do in the other mental states. Those thoughts feel "cleaner" as if coming from a true origin rather than bounced around a cloud of repeated thoughts like you mention.
But I feel like maybe these thoughts are not exactly the ones you are looking for. They are removed from our everyday sense of living, and not really invested in disciplines we have come up with socially as humans. It would be like asking if a caveman 500,000 years ago would have come up with the solution to how to fix a bug in the code I just wrote. It would have been an original thought for him sure, but kind of besides the point.
Edit: as an example for the interpolation/extrapolation, consider sentences like "Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo" or actual usages of this sort of thing in literature:
https://en.wikipedia.org/wiki/Kir%C4%81t%C4%81rjun%C4%ABya#Linguistic_ingenuity
https://en.wikipedia.org/wiki/Lion-Eating_Poet_in_the_Stone_Den
The interesting part is that constrained thinking is what produces this
It is fascinating to see how deep you went into explaining the philosophy behind having an 'original thought'.
This line was the perfect analogy to make me realise how I had overlooked this aspect of my question: the limit to what you would consider a unique thought. Its definition is as vague as defining what is right or wrong.
I am genuinely grateful for you having took your time to write such an elaborate response to my post. You answered the question in the exact manner I was looking for and also included some of your personal thoughts that made me perceive my own question at an angle even I could not think of before. I almost feel like this post isn't worthy of such a high quality comment. Hope your day goes great the same way you made mine.