My partner and I were discussing this earlier as she was surfing teh interwebz about Soylent. She was astounded at all the horrible negativity about the product, the concept, etc. and all the vitriol around what people choose to eat (or not eat) or how they spend their time (not wanting to spend time preparing/dealing with food, etc.) Suddenly, I had a moment of clarity. The following is of course strictly my opinion, I could be wrong, your mileage may vary, void where prohibited, sorry Tennessee!
The whole “foodie” movement has become a massive force in (at least American) modern society, and in my opinion has romanticized food to absurd levels. Soylent, unlike other “meal replacement” or “diet” shakes that are designed only for occasional use, is demonstrating that true nutrition is a function of chemistry, and has nothing to do with their home-grown, pesticide-free, non-GMO, free-range lettuce or tomatoes. Nutrition is really just that - chemistry. It is a science, and is not romantic nor is it political. I believe that Soylent makes these sorts of people (and clearly I’m excluding anyone who is consuming or planning to consume Soylent, DIY or otherwise) incredibly uncomfortable because it strips away something that they have put tremendous effort into projecting onto the world - that food is this wondrous, nearly mystical, romantic thing that must not be messed with in any way.
Basically by subsisting quite well on Soylent, we’re completely destroying a belief system that has been built up around the politics of food and health. We’re essentially destroying a near-religious fanaticism - without intending to of course. But that’s what I see in the reactions of these people who are so mortally offended at the choices we make with regards to the substances we put into our own bodies. In redefining “food” we force them to consider the possibility that maybe food isn’t really what they’ve convinced themselves that it is.
< /end deep thinking > =)