David Mo
Philosopher
There is of course no such “burden of proof” upon scientists. Because they are not claiming to ever have a literal “proof” in the sense of absolute certainty. What science has as any “burden” is simply the need to provide evidence and the need to show that the conclusions which we draw from that evidence can be tested and checked with results that are consistent and repeatable.
Literal or not, the realist must present any kind of evidence. But this evidence cannot be the experience, because what is at stake is just experience. The evidence that experience corresponds to reality cannot be any experience. That is what the solipsist asks you to justify.