Does a sensation know about pleasant and unpleasant?
I don't think so. Looking at something less emotionally loaded - sounds - hearing / sound does not know 'pleasant' or 'unpleasant'. It is just hearing/sound. Although some sounds seem to be universally agreed to be disliked - very loud, very high pitched, baby crying - again what they have in common is that the aversion seems to be in base survival program.
And yes, some reactions are part of the survival programme, direct hits, no story attached.
Just asking: How is it known that something is survival programme or biological intended?
These are just thoughts - it's just that when looking it seems that some things seem inherently unpleasant. And I posited that this might be explained by the survival program. But you can't see that they are/aren't part of survival just in direct experience.
If there would be no thought story action would just happen, or? Are thoughts needed in any way for it?
No thoughts needed. If there was no story, then I would just sleep if tired. But story requires certain things of 'me' - working to keep roof over head, food on table etc., so 'I' resist the tiredness because of story.
Like and dislike. Why do they exist? Isn't a deciding factor/unit needed to say what is likeable or not? Can you find one?
Still looking at this one. Need to look more. So far...
Likes and dislikes seem to arise, in the moment, just like 'choice' seems to arise in the moment - an action is taken / choice is made - such as choosing to read a book (I like this) rather than to watch football (I really don't like this). Preferences / likes/ dislikes seem to be built into the program over time, but this can't be seen in this moment in direct experience - all I see now is 'reading a book' not 'watching football'. 'Over time' requires a continuous story, a past. Or maybe 'past' only needed to explain origination of like/dislike. I think there can be like and dislike, or perhaps preference, without a separate self - well preference does appear to exist, while separate self does not so... I can see that the self thought comes up when 'I' don't get the thing that 'I' like or do get the thing 'I' don't like. The feeling of deserving or being hard-done-by seems to be more of a problem than the basic preference.
But back to the main question - does like/dislike require a self? I'm still struggling with this. In this moment if I was presented with two flavours of icecream there would be the arising of a movement towards one flavour (preferred) more than the other. This just happens. Preference doesn't require any reasoning / thought. One can posit that it's because of previous experience / conditioning, but in the moment there is just the moving towards one and not the other.
Thanks, as always. :-)