[maxerickson]

The hard part of modern diet isn't macro composition, it's measuring caloric requirements and sticking close to them over long periods of time. Macro composition can help with that, but eating way too much of the perfect diet is still going to be bad.

[ska]

Sure, we understand "too many calories is bad" also, but that wasn't my point. A lot of conflicting claims about macro composition are made for example, and it's really hard to definitely dismiss them (or even answer how much it matters) mainly because we don't understand it well enough.