>>13393156>You atleast agree that ours eyes sees the sky as blue, but it actually isnt.If the sky isn't blue, and it doesn't even exist, but we perceive it to be blue, and we can observe atmospheric formations that result in weather, then what is the point of having eyes at all? We should all just gouge our eyes out and die because nothing is real, and all knowledge is a step in the direction of ignorance, rather than understanding.
You need to be able to have a base to work off of; to be able to rely on concrete reality with reason, to rely on the work of the generations that have come before you. The sky is blue and real enough for people to live under it, year after year. Math is reliable and precise enough for people to utilize it in benefitting civilization, for centuries.
There are methods to optimize human reasoning, the sciences of mathematics, rhetoric, to perfect the arts, etc. but nobody gains anything by claiming nothing is real.
Buddha and other oriental mystics already came to that conclusion. If you rest on it, then perhaps you should study Mahayana Buddhism, and become a zen monk to cultivate kensho. But even that is a body of knowledge, and endeavor in study. Are you going to say that those aren't real either?