Ok, I’ll try an experiment with you to show you what I mean.
Let’s start by emptying all bias and knowledge.
All we have are our five senses and our thoughts.
If we can’t trust our senses, what can we trust?
Idealism, the belief that all is an illusion denies the five senses with absolutely no evidence whatsoever. It also suggests that we create our own realities, which once again, is based on no evidence at all. So Idealism is out.
Materialism, the belief that all that can be known can be known by the five senses, is also out,because there are some things that cannot be known by the five senses. Thoughts, numbers, abstract principles, etc. So no Materialism.
I’ll stop here and ask, Is my analysis, keeping in mind that all we have is our five senses and our thoughts, reasonable?