Do you not realize how much "belief" is in science?
Someone believed in the Higgs Boson before it was proven.
We still today believe in the big bang theory, not because it's been proven, but because there's a consensus that says it's the most plausible explanation.
Science still doesn't tell us even what to believe regarding the origins of life and consciousness.
We believe in dark matter and dark energy, not because they've been directly observed, but because they're the best possible explanations that we have at this time for certain phenomena that we believe to be their effects.
We believe that there must be some overarching principles that can unite the formulas of quantum physics and general relativity, but no one knows what they are.
Often in medicine, decisions are made based on what the doctors believe, even when there isn't 100% certainty.
So stop pretending there's no such thing as belief in science, because there absolutely is.