Would anyone like to use me as an experimental subject? The idea is to determine whether I am a "scientismist" (might as well start with yet another invented buzzword) or not, and in the process maybe shedding more light on how we are to define "scientism". Ooh yes Alien826, I hear you all say.
Here's how I intend to proceed. I'll give a brief description of how I arrive at my world view. I will then answer any questions that arise. Then the forum is open to conclusions.
Though my words don't always reflect this, I see the truth as an assigned probability rather than an absolute. In the examples that follow, 0 means no possibility (therefore completely false) and 100 means absolutely true. I won't be using either value. That there is something apart from images in my mind, 99.999999. That there is a God loosely equivalent to that believed in by a fundamentalist Christian, 0.00000001.
I expand the concept of science to include all investigation of claims, by anyone, so long as the methods make reasonable sense. Is there an elephant in my back yard? I'll have a look. I don't see one, so I ask a few other people to look. They don't see one, so I give the elephant hypothesis a very low probability. Not zero, as there could be things I've missed, but I don't think so.
I have formed an opinion to a fairly high probability that everything is physical, but allow that word to be a bit "fuzzy" in meaning. By that I mean it doesn't have to be restricted to forms of matter and energy that we currently know about. My thinking is that if something is detectable it must have some kind of presence, or putting it another way, it must be "made of" something. So, if we discovered a completely new form of matter, we would simply expand the definition of "physical" to include it.
If something is not (currently) detectable in any way then there is no point discussing it as there is no starting point. How do you discuss something that you cannot describe in any way? I assign a very high level of probability to undetectable things, based on the history of science. It's unlikely that we have discovered everything.
Undetectable things tend to include various gods, ghosts, spirits and so on. I would not be greatly surprised if someone did come up with some hard evidence for one of these things, but I would be very surprised if the reality matched any of our present ideas about them. Why? Because all such ideas are based on very little data. And to repeat, once discovered, they would be quite reasonably included in the "physical" universe.
That will do for a start. Fire away.