> I'm sure a large majority of nutrition scientists supported a low fat diet 20 years ago. (Food for thought)

Sure, and a large majority of physicists supported General Relativity 20 years ago.

If your point is that vague analogies aren't helpful and specifics are needed, I think that was precisely what toomuchtodo was getting at.

General relativity I much easier to test in simple systems, like planets traveling in the vacuum, or to get more precision you can test it in the lab https://en.wikipedia.org/wiki/Tests_of_general_relativity . I'm not sure if this is the more accurate current test but from https://en.wikipedia.org/wiki/Pound%E2%80%93Rebka_experiment :

> The result confirmed that the predictions of general relativity were borne out at the 10% level. This was later improved to better than the 1% level by Pound and Snider. Another test involving a space-borne hydrogen maser increased the accuracy of the measurement to about 10^−4 (0.01%).

Nutrition and diets are more difficult to measure (you can't enclose a few thousand persons in the lab for 20 years) and it's full of side effects and interactions. IIRC a low fat diet is still recommended. I think that a better example of the changes in nutrition is the butter vs margarine recommendations, see for example http://www.telegraph.co.uk/news/science/science-news/1179683...

Most nutritional claims are based on pretty thin evidence and even more scant data.

The climate researchers are able to dig back literal millions of years and chart their findings.

> The climate researchers are able to dig back literal millions of years and chart their findings.

sorry, this is pretty funny. Do you know what the data those charts of millions of years are based on? models based on thin evidence and scant data. We are talking like 10 ice cores and 5 trees will swing the data wildly.

I am not a denier (CO2 causes some warming!) but this comment was kinda funny.

I'm surprised you're being down voted.

Remember the "global warming hiatus" that happened over the past 15 years? The one that most climate scientists accepted? Well, it looks like the models we're wrong. Tweak a few model input and "oops!" it's actually been warming the last 15 years.

They still do. People who tell you carbohydrates are the problem have something to sell.

exactly! pssh science, what good is it? /s