Shall we start with some definitions? From the OED:
Science: “The state or fact of knowing; knowledge of cognizance of something specified or implied.”
The OED is a good place to start, Wanstronian. However, why limit the definition of science to the one you selected? Why not expand it to all of the modern definitions? For example, (1) “Science is any organized body of knowledge.” Thus,
science can include almost any subject, such as biology, chemistry, comparative lit, hotel management, coaching of a college sports team, or medicine.
Or, (2) “It can refer to only those subjects that deliberately make measurements or experiments.” In this case, the premier science is probably “physics”.
Tobias Dantzig wrote, “Read your instruments and obey mathematics: for this is the whole duty of the scientist.” This definition of science is so strict that it is
mathematical in form. But, if definition (1) (held by people such as Herbert Spencer) is too broad, perhaps definition (2) (held by such as Dantzig, and Newton) may be too narrow.
The association of science with (2) gives rise to “positivism”, which supported mathematical descriptions of the properties of things but did not push on to
causes. So, today, science seems to be only applicable to controlled experimentation or measurement, or that which gives
positive results.
The word “science” also has another, older meaning. That time period defined “science” as “certain knowledge of things in terms of their proper causes, or principles, or reasons.” (
Posterior Analytics, Bk 1, ch. 2, 71b, pgs. 8 - 16)
Materialism: “The doctrine that nothing exists except matter and its movement and modifications. Also the doctrine that consciousness and will are wholly due to the operation of material agencies”
It seems that you have limited “materialism” to too narrow a definition as well. See the following:
allaboutphilosophy.org/materialism.htm
From those definitions, we can see that materialism cannot be debunked merely because we don’t know where the matter originated. The key question is whether matter is the only thing that exists* now*. The question of the origin of matter is a valid one, but not directly relevant to materialism.
It would appear that the aforementioned website has done a pretty good job of debunking “materialism”. And, why should we further limit our natural inclination to search for the meanings of things by limiting the search to the present? The question of the origins of
matter is much more than merely a “valid one.” It is an essential one, else we shall have a science that results in a large error, because it started with a small error that grew.
We can also see that science is not, in itself, a study of anything, merely the result of such study.
Of course, we will conclude that, if we limit our definitions as you have. However, as you can see, by starting out with a seemingly small error, we end up with a conclusion that is a much larger error. The modern definition of “science” is, “biology, physics and chemistry,” and such definition does not dis-include the lesser sciences by any means.
Furthermore the assertion that “thoughts and theories…exist[ing] independently in an intangible mind” is “general consensus of humanity” is uncited and anyway irrelevant. Concensus does not equate to fact, or even to probability. What’s important is what can be proved, and this assertion cannot. Furthermore, inasfar as we can show anything at all, the evidence points the opposite way. Mess with the brain = mess with the mind.
Well, a fellow atheist wrote - only today - that consensus is probability. How do you fellows want it?
jd