I meant you can win an argument against theism by just asking why repeatedly.

It’s as simple as asking why over and over. Toddlers do it.

Matter has a specific meaning in physics but for this purpose I’d define matter as anything that exists in the world and behaves according to the rules of physics.

We can do science to determine how matter behaves and we can determine it keeps behaving that way whether any conscious being is interacting with it. That’s why I think matter is more of a foundation of reality than experience. Experience can come and go but matter keeps doing its thing.

Certainly we must rely on experience to learn anything about matter so from an epistemological point of view it is the foundation of knowledge but I do think we can discover a deeper foundation for reality through science.

OneNote is better for note-taking incorporating a pen (stylus), and Dynalist is better for lists, but Obsidian is decent for both and has some unique add-ons (Leaflet map plugin). I still use all three.