Idealism is more Rational than Materialism

[Chas]

I had never heard of idealism, solipsism or monism.

I'm sure you heard of monism. it's simply the belief that there is only 1 fundamental substance. materialism is a form of monism. idealism is the other.

No, monism is a form of materialism. Materialism is the more general term.

Unless you are advocating Solipsism or mass hallucination

solipsism, no. mass hallucination, sort of. more like we're all in a simulated reality.

Is that really Idealism? Not really. Where is this simulation hosted?

All that the concept of simulation does is to push back the definition of reality one level. It doesn't explain anything.

then my observations are confirmed by others' observations of the same and similar matter.

which would be consistent with the proposition we are all in a simulated reality. and this eliminates the need for a foreign non-conscious substance that we can't observe.

No, it requires a substance on which to host this simulation.

That matter exists is the more parsimonious and coherent explanation.

except you already gave alternatives that were more parsimonious and coherent which you detracted because you didn't like them.

No, I don't believe I did any such thing.