The frightening thing about Soylent (to me) is that I am not sure if it constitutes a "diet" any more than the mud patties and other non-food yet objectively nutritional foodstuffs consumed amongst the poorest of the poor in Africa.
> Changes in metabolism, bigger life changes like puberty and menopause, obviously pregnancy
I do not think these things happen on a regular basis.
If you're going to argue that all the nutritional changes can be accounted for, I won't disagree with you. But to argue that people's dietary needs don't change is just uninformed.
It probably doesn't. Some people can't metabolise certain forms of B-group vitamins. Unless Soylent includes all the different forms, those people are going to develop a serious deficiency.
That's just one micronutrient, out hundreds that are currently known about.
More worrying is the consistent pattern of being dismissive of feedback from the people who study this subject as their primary concern.