“Ask an OP-relevant question,” Josh said.
“I did,” I replied, showing where.
“Yep,” he responded.
Okay, well, that was a very devastating and well-argued critique he defended there. I am undone.
A self-defeating argument
I ask you, reader, if you can track Josh’s logic here. It may not be obvious at first but take a look. He just argued that if something you assert provisionally now could be revised within the next 100 years or so, then what you assert provisionally now has zero veracity or truth-value. [1] And he says this applies to not only science but also theology.
But that is self-referentially incoherent because
its proponent is fallible. In other words, the claims Josh asserts today—the interpretations of Scripture, the theological assertions, the philosophical analyses—could be overturned at some point in the future. (In fact, I am sure that he has already experienced beliefs being overturned and replaced with more biblically or theologically consistent ones. I doubt he was born with his current set of beliefs.)
According to his own argument, that means he presently has zero veracity.
Either (a) revisable claims can be true, in which case revisability is irrelevant to veracity, or (b) revisable claims can’t be true (zero veracity), in which case the claim “revisable claims can’t be true” is itself without truth-value.
I don’t know about you, reader, but I prefer the more modest claim that people like Feynman have “limited, domain-specific veracity that is also provisional and defeasible.”
A false claim about science
The unstated truth about science, he said, is that its offerings are likely to be revised, even substantially, as new evidence is discovered.
But that is hopelessly naïve, because the reality is that
it isn’t unstated at all. Not only are scientists and science communicators very transparent and candid about the tentative and provisional nature of scientific ideas and conclusions (
Wikipedia), but the very history of science bears this out, as one idea after another has been revised or replaced (e.g., static universe).
Here is the point: Just because a claim is revisable, that doesn’t mean it has no truth-value now.
“It’s likely that everything Feynman said in that video will be revised in 100–150 years,” he said—essentially repeating what I had just finished saying (“provisional and defeasible”).
Maybe it only has veracity if it comes from his keyboard, so he was doing me a favor by repeating it.
He doesn’t seem to understand
that’s precisely why his invoking modern physics was ironic.
Notice, too, that right after he claimed modern physics has zero veracity, he wants to highlight its (limited) usefulness in these discussions.
This is great stuff.
Observe the complete non-answer response, despite my specific questions. "Do unto others" and all that.
I have contributed 23 posts now to this thread. In how many of them did I attempt to use science to answer the OP?
Exactly. We can all verify the answer: Zero.
I referred to Feyman five times:
- I introduced Feynman’s ideas on time as a conversational resource (here).
- I engaged @makesends questions and concerns about Feynman’s talk (here).
- I shared a new link with @makesends, who wanted to give it a listen (here).
- I answered Josh regarding the problems inherent with Feynman’s view (here).
- I critically scrutinized Josh‘s attempt to use science to answer the OP (here).
While I did attempt to answer the OP, it was not in any of those five references to Feynman or science.
If memory serves, I think we have a member who has little patience for those who seem to ignore what he takes care and time to write.
He is right about that. There is, however, a need to correct Josh’s errors, falsehoods, and misrepresentations.
That problem, of course, being that Rovelli and Kaku have zero veracity because their views, like Josh’s, are revisable.
Footnotes:
[1] Let’s expose the hidden premise: “If a claim is revisable, then it lacks truth-value” (wherein
veracity tracks truthfulness or correspondence to reality). But then maybe Josh didn’t mean veracity, despite saying it.