But we don't know what 'reality' is, we only know what science has revealed
so far.
100 years ago we thought we had a handle on 'reality'. But a few niggling wrinkles remained, and when we tried to smooth them out we discovered a whole new 'reality' that we hadn't imagined before. But there are still a few wrinkles. In a few thousand years (assuming we haven't destroyed ourselves) scientists may look back at what we know now and laugh at how ignorant we were.
If science deals only with 'facts', how do we deal with subjects that currently have no 'factual' answer?
Atoms were first postulated by ancient Greek and Indian
philosophers. They had no evidence for them, and no way to prove whether they were right or not. The argument for atoms was based on philosophy, not science. But that
concept helped scientists to find real atoms and the subatomic particles they are made of.
Today science tells us that there are a certain number of particles making up atoms, and that is all. There are no 'hidden variables' or a finer structure that we can perceive. But still a few wrinkles remain. What does this suggest? That our understanding of 'reality' may not just be incomplete, but is only barely scratching the surface. That is not a scientific argument, it is philosophy. We have no evidence for it, just as we had no evidence for atoms until the 1800's.
99% of philosophy may be 'bunk', but that doesn't mean it has no value. You may think that science is so advanced now that there is no room for philosophy. But you would be wrong. 99% of 'science' today is directed at solving the practical problems we are facing. Questions like 'does anything exist' or 'are we all living in a simulation' may seem silly, but they can goad science into exploring stuff that would otherwise be ignored.
Science has a tendency to suffer from the '
Streetlight effect'.
Philosophy might be stumbling around in the dark, but sometimes that's where you find things. Philosophy can't tell you what's there, but it can tell you what
might be there and could be worth shining a light on.