Let us begin with biology.
The class Mammalia takes its name from the Latin mamma — breast. The defining characteristic of every mammal on earth, from the blue whale to the common field mouse, is the production of milk to nourish offspring. It is not a secondary feature. It is the feature. The one that named the entire class.
Humans are mammals.
Humans produce milk.
Humans have also been consuming the milk of other mammals — primarily cattle — for approximately ten thousand years. Long enough for a specific genetic adaptation, lactase persistence, to spread through large portions of the human population. The body, given sufficient time, adjusts. Ten thousand years was sufficient time.
Something has changed.
In less than a generation — some would say a decade — a growing portion of the population of wealthy Western countries reports that it can no longer consume dairy without significant personal distress. The mammal that cannot tolerate the defining product of its own class. Ten thousand years of successful adaptation. One decade of reversal.
One notes this without comment.
One also notes — purely as an observation, with no conclusion attached whatsoever — that the demographic most commonly reporting this intolerance is the same demographic most publicly associated with the word tolerance as its primary moral value.
The tolerant are intolerant of quite a number of things.
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Join Now →Dairy. Gluten. Certain nuts. Opinions that arrive uninvited. Words that land without a warning label. Discomfort of any variety. The people most frequently labelled intolerant by this demographic tend, as an observable matter of fact, to eat whatever is placed in front of them, sleep in conditions of moderate adversity, and hold their views for decades without requiring recovery time.
This is not a political statement. It is an observation about digestion.
There is, of course, a simple explanation. Modern food processing. Industrial agriculture. Gut microbiome disruption. These are real factors, seriously studied, and they account for much.
They do not entirely account for the timing.
Because the same demographic that cannot tolerate milk also cannot tolerate pollen. The people most passionately devoted to saving nature, rewilding the cities, returning the forests — their bodies, increasingly, cannot survive a walk through one.
Save the planet. Can’t tolerate pollen.
Somewhere in that sentence is a question worth sitting with.
Not about diet. Not about politics. About what it means when a living organism becomes progressively intolerant of the natural world it inhabits — and simultaneously more convinced than ever that it alone understands how that world should be saved.
The body, it seems, knows what it is becoming intolerant of. The more interesting question is whether it is reacting — or simply agreeing.
Next week: Immanuel Kant spent a lifetime mapping exactly what we can and cannot know about reality. What he found at the edge of that map is still waiting.
