You mean, "if matter exists and I can sense it, then I will sense the collision of real objects"?
Johnson's refutation was of "the world doesn't exist," with "I can sense it." Coombs' statement is "interpretation of facts rest upon theories, which rest upon assumptions." This holds true for sense data- "if I am not hallucinating, there is a monitor in front of me."
Johnson's refutation was of "the world doesn't exist," with "I can sense it."
No, I don't think so. Bishop Berkeley, after all, wasn't entirely clueless and was quite familiar with the sensory input. But what Samuel Johnson actually had in mind is besides the point.
It seems to me that the requirement to list assumptions for basic sensory data (absent a strong prior as in e.g. "I swallowed a strong psychoactive ten minutes ago") is rather pointless. Yes, solipsism may be correct, or the universe might be a simulation the code...
Here's another installment of rationality quotes. The usual rules apply: