What is reality?

[FreethinkingSceptic]

While I would agree that there are objective laws that govern reality, my understanding is that every individual person will experience reality differently and have a different perspective on it. Everyone has their own private, subjective reality which isn't mutually-exclusive to an objective reality. Such as how fast a car will appear to be traveling depending on where a person is viewing it from, regardless of the objective speed that it is traveling.

For example, the earth may look flat to the naked eye, though most people would agree that the earth is objectively round.

So since no person likely has a perfect perspective on the reality around them, and their perspective will be biased by subjective judgments, prejudices, and assumptions, how does anyone know what reality even is, especially if their perspective on reality comes from trusting the judgment of others who don't have a completely objective perspective on it?

[aitm]

Well....math for one. When one hundred people see 5 cows, they pretty much see the same reality.

[Gawdzilla Sama]

Sophomoric babble goin' on.

[Blackleaf]

Reality is all the product of the awoken dreamer. We are but characters within that dream, and yet, because we have thoughts and experiences, we exist. By reconciling this contradiction of being both fiction and real, one can achieve chim, becoming a lower case god. But be careful, because if you fail, you can zero-sum, with your existence being erased from history.

Beyond godhood, it's possible to ascend even higher. When you step back from the aurbis and view it from the side, you realize it's shaped like an I. With this understanding, one can separate themselves from the dream and become a dreamer of their own reality.

Wait. Hold on. Ah, shit. I got my notes mixed up. I was thinking about the universe of The Elder Scrolls. Sorry about that.

[Mr.Obvious]

You know, it's not a merritless excercise to think about how one might argue that one can never truly know and experience 'reality', as reality is always filtered by our flawed, biased and human senses and interpreted by a 'shaped' brain and mind.

But in at least a colloquiacle term, we aren't just certain of reality by trusting other's judgements. We can discover reality by testing and finding established (or establishing) 'facts'.
For example, gravity, is a constant. One might subjecrivly experiencie it differently, but it works the same.