I have looked closely. Quoting
https://en.wikipedia.org/wiki/Calorie> Some authors recommend the spelling Calorie and the symbol Cal (both with a capital C) if the large calorie is meant, to avoid confusion;[8] however, this convention is often ignored.
For example, the US FDA page on calories at https://www.fda.gov/food/nutrition-facts-label/calories-nutr... has:
> 2,000 calories a day is used as a general guide for nutrition advice, but your calorie needs may be higher or lower depending on your age, sex, height, weight, and physical activity level.
As for 'RAM is always GiB - it’s how it works.' - that's my point.
RAM by convention is in GiB even if the notation uses GB.
The "Crucial Pro 32GB Kit (16GBx2) DDR5-5600 UDIMM" at https://www.crucial.com/ is actually GiB, because the convention for RAM is to use "GB" to mean "GiB".
Even though that doesn't follow SI prefix conventions.
Just like the predicted currency of 75 years from now uses 99⁶ to mean 99 million, even though the superscript 9 is not currently a suffix meaning "million".