Upstream Color depicts parasitic control through three parties: the Orchid Carrier who plants the organism, the Thief who harvests human hosts for labor and capital, and the victims whose decisions get scripted from inside their own heads.
The film treats this as a deliberate conspiracy—a rational actor (the Thief, played by Thiago Martins) executing a plan for profit, but this is 2013 thinking about 2023 reality.
The orchid doesn't need a conscious director. It just needs a feedback loop that rewards engagement, spending, and compliance.
Carruth's most revealing mistake is the scene where Kris (Amy Seimetz) and Jeff (Shane Carruth) compare scars and realize they've been controlled. There's a moment of clarity, a villain to blame, a system to escape—but contemporary parasitism doesn't hide from consciousness. It thrives on it.
Upstream Color imagined a puppeteer and built its terror around that image, but the actual horror required no puppeteer at all—just engineers, incentive structures, and mathematics that found the vulnerability humans didn't know they had.
Read Tristan Harris's 'How Technology Hijacks Your Brain' (2016 essay, Medium) and notice which parasitic mechanisms Harris attributes to deliberate design choices versus which ones emerge from pure optimization—Carruth would have seen them as the same thing.
Watch interviews from Carruth's DVD commentary or 'Upstream Color: Decoding the Code' (various sources) where he discusses the intentionality of the Thief character—you'll notice he treats the conspiracy as morally coherent in ways the actual surveillance economy isn't.