US probiotic dietary supplement sales

As probiotic sales have grown, self-published books have multiplied, a correlation of 0.978 that connects gut bacteria to literary ambition with the culture-fermenting confidence of a chart that treats intestinal flora and Amazon manuscripts as equivalent forms of self-cultivation. The bacteria multiply, the manuscripts upload, and both trends serve the same demographic: people who believe in doing things themselves.

Probiotics grew to over 3.2 billion dollars. Self-published books grew to over 2 million per year. Both nine-year curves driven by the same DIY culture: probiotics are self-prescribed health interventions, self-publishing is self-directed literary production, and both bypass traditional gatekeepers (doctors, publishers). The shared variable is the empowered individual consumer-creator.

Nine years of probiotics and self-published books is a correlation between two forms of self-directed culture: one cultivating bacteria, the other cultivating prose, both enabled by platforms that removed the gatekeeper. The gut is balanced, the novel is uploaded, and neither required professional approval.