From RespectedSoftwareExperts:
Respected Medical Experts can't even agree on whether meat and fat is good or bad for the body. Respected Physics Experts can't even agree on the angular momentum of the planets close enough to decide whether Velikovsky's theories work or not. Respected Architectural and Economics Experts disagree with each other as a matter of fad. Respected Experts in every field have been more wrong than right for as long as they have existed. I have no idea what a resolution to the "crisis of authority" could look like, but it scares me just thinking about it. -- AlistairCockburn
Um, Alistair, you might want to reconsider your comments about Velikovsky at RespectedSoftwareExperts. Unless you have a very strange definition of "respected physics experts". -- BenTilly?
I didn't write that Velikovsky is a respected physicist. It is when I try to read attack and defense of his ideas by allegedly respected physicists, it is among *them* that I notice immense disagreements. -- Alistair e p Credentials are easy to claim. Astronomers have very good estimates of the angular momentum of the Solar System, and can project past orbits with amazing accuracy, an extreme example being http://lalaland.cl.msu.edu/~vanhoose/astro/0001.html (needless to say, they don't find support for Velikovsky's theories) -- Ben
...ah, but you see, I can't distinguish one astronomer from another, and when two of them differ in print about the angular momentum of the Earth to 10**3 or 10**6, there's no way I can know which one's wrong - I can't do the calculation myself, and so I can't break either astronomer's calculation - - - that's the point I was making. The fact that you tell me I should trust astronomer A and not astronomer B doesn't help. -- Alistair
[Why can't you do the calculation (for the earth) yourself? Or, for the solar system, at least estimate for Jupiter, which should have the lion's share.]
Then your definition of "respected physics expert" was "writes well enough to look convincing to someone who knows nothing on the topic". Which is more about verbal fluency than expertise. In that case I try to either avoid venturing an opinion, or else qualify my ignorance up front. I say _try_ because I often find I have failed... (Relevant book: "WhyPeopleBelieveWeirdThings?" by Shermer.) -- Ben
Actually, I'd change that to "writes well enough to convince the people around him/her" and suggest that that's all there ever is. If I or anyone else opens up a journal and sees articles by two people with PhD in Physics, we trust the testing system that produced those PhDs?. That testing system consists of nothing but one person convincing the people around him.her, who are supposed to themselves be respected experts. The point I was making is that in no field at all - not even physics and certainly not even medicine - does the word "respected expert" connote "correct" -- Alistair
The testing system Alistair refers to proves that a given person has the skills but says nothing about their experience. Indeed, an "inexperienced" university doctoral student could pass those same tests and could (hypothetically) do better than a 10-year veteran.
All of this leads me to state the following: no two experts can ever completely agree. Because they have different experiences they must have a different kind of expertise. Each one may be qualitatively and quantitatively equal to the other and yet they may be different. Each one's past has taught different lessons; how then can you ask them to agree on any but the simplest and most basic things? The less a discipline depends on measured experiences (medicine as compared to fine arts) the less experts will agree.
I feel the crisis of authority and was talking about it recently with a colleague. Unfortunately I am not yet a respected expert so I have no answers. Wait a couple of years and I may publish a book (HaHaOnlySerious).
Of course experts disagree on some issues; that's part of how scientific fields evolve. However, one expects that experts will agree on most of the issues which are accessible to a layman.
It all boils down to this: "N�o basta ser, � preciso parecer". --MariusAmadoAlves