My original comment that you quoted was regarding transition to a VLC diet:
Quote from: PaleoPhil on Yesterday at 07:38:34 PM
Another common cause of fatigue during the early period of transition to VLC is the time it takes for the body to transition from burning mostly carbs to burning mostly fat. Some people have more difficulty making the transition than others. I wonder if liver and other organs would help even them?
Miles, first let me make sure that you understand what I mean by VLC. VLC by definition means low intake of carbs as calories, not mass. It seems to generally be viewed as being somewhere below 10-30% calories as carbs. In my case it's around 2-4% calories as carbs.
It seems that your question comes down to, is it possible to eat a raw Paleo diet that's high in carbs as calories, yes? Since it's possible to eat only raw fruit and survive for some years (see 30BAD), then the answer would appear to be yes. My understanding is that the Wai diet that has a section in this forum is higher in carb calories than fat calories, correct me if I err. So the answer to your original question would appear to be no, any person eating raw Paleo wouldn't necessarily have to be eating mostly fat, neither by percent of calories nor by mass or volume.
Since percent of calories (or maybe effective calories--see Barry Groves
http://www.second-opinions.co.uk/should-all-animals-eat-a-high-fat-low-carb-diet.html) is more relevant to human use of foods than percent of mass or volume and is widely assumed to be what people mean when they talk about low carb and quote ratios, I think it only adds complexity and potential confusion to add percent of mass or volume to discussions and as a result I rarely cite those figures. So when I talk about burning mostly fats, I mean "mostly" to be as a % of total calories. The only time I tend to get into the figures by mass is when I want to determine what the mass of fat vs protein and carbs I'm eating converts to in terms of % macronutrient ratio, mainly because it might help my constipation and perhaps help in other ways to eat much more fat than protein, not because I think there's any magic in macronutrient ratios for all. For healthy people I think that measuring macronutrient ratios is probably largely unnecessary, but that's a separate topic of its own.