hyper-reality

I don't know why, sometimes I feel that everything around me is simulated, that all the people I've interacted with are merely NPCs. Sometimes I feel so withdrawn from my environment that I lost my sense of reality. Of course it's entirely possible that our world is indeed a trick played on our brain (or whatever that perceives). But the feeling I'm having right now is hard to be described. It's even less real than the matrix. I'm basically denying everything that I'm perceiving, but still living life as though I'm playing along with all these simulations.

What is reality? Does reality even exist?

This question has been pondered over since the time when I'm Secondary 4. I have written a post about it but not well elaborated. I have figured out a series of things can be real--the abstract. Ideas, structure, emotions. These things are hard to deny, for we know they exist. Although nobody has understood exactly what they are, they do exist. On the contrary, things that seem very concrete appears easiest to deny of their existence. For example, I'm staring at my computer screen. It is bright, it contains all those words that I have typed, but whether the screen is indeed there is unknown. Colours and words can be easily created in my mind. I could be well in a dream.

Noumenon is real, but phenomenon isn't?

But if we are to deny every bit of sensory experience, we may slip into hedonism or even suicide, both by common sense don't sound good. Therefore it's better to just play along, even though reality may not exist.