How do you know that? Science has no idea how the brain produces consciousness (and therefore strong basis to claim that other entities don't). There might be all sorts of selves that you simply can't observe.
We don't know how the brain produces consciousness but we have a good idea from observing people suffering brain damage from accidents how a functional brain is directly linked to consciousness.
Science can't prove the world is not the dream of a giant turtle- so technically I can't "know" anything- so asking "how can you know that?" Is kind of a boring line of questioning. It has no answer other than "Well I guess technically I can't know that, or anything," But that doesn't mean turtle dreams are going to get equal weight with our empirical models of the world.
There might be all sorts of selves that you simply can't observe.
Or there could be none besides those with a CNS. Science may have a long way to go on understanding minds, but speculation on other sorts of minds entirely is still within the realm of science fiction. So, if you're going to assert something like a conscious experience by plants then you should understand that you are taking it as an article of faith.
But science has no way to observe consciousness even in those entities with central nervous systems, not even humans. The inference of consciousness is entirely based on observed behaviours being similar. I'm not asserting that plants have consciousness. But I am suggesting that we ought not to completely dismiss the idea.
Thanks for clarifying. But I would take issue with the statement "science has no way to observe consciousness"
A cornerstone of science is empirical observation, and we can all observe our own consciousness to some degree. It's hardly perfect or even nearly complete, but it's something.
