Newtonian mechanics perfectly describes what happens
not perfectly. only extremely closely, not the same.
Relativistic and quantum effects can’t even be detected except for things that are either very small, very large, or very fast.
quite true
And if you can’t detect it, science isn’t interested in it.
not at all, unless you are referring exclusively to the technology end of the spectrum of science
for example some of the biggest areas of interest in science today are dark matter, dark energy, and “strings”. none of which have ever been detected directly or indirectly. their effects have never been detected as well but are THEORIZED to exist to try to explain certain problems
Science is dependent ONLY on things that are detectible through observation or experiment
The other end of the spectrum (technology) being based on repeatable, observable, measurable, existing phenomena, although not sacrosanct, and while subject to frequent modification and clarification is almost infinitely more reliable and changes generally by a process of “evolution”, not “revolution”
When evaluating the reliability of “science” one must be very careful where on the continuum one is referring to.
science has nothing to say about the nature of the spiritual universe
that is generally true, however it has nothing to do with anything that i have pointed out