Read some of Tassman's post and you will find the following claims:
The world is physical and natural.
Science can answer all questions within this world.
It started as I recall as a progression from qualia to psychology versus biology and whether there are words, which are a part of a natural world, but can't be explained by natural science.
And indeed there are such words: "Morally right" and "morally wrong".
So this thread is about both solipsism and qualia.
So if you like we are debating the subjective experience of "morally right" and "morally wrong" and if that is a limit to science.
So does "morally right" and "morally wrong" have something to do with consciousness, qualia and subjective experience. Yes, they do. Further they don't have a scientific theory like the theory/law of gravity, unless you can show us a link to a scientific theory of what behavior is morally right or wrong.
In regards to the header of this thread it is related:
Science can't answer moral questions, therefore science is a limited methodology when it comes to questions about the natural world.