True to its name, the Soylent diet consists of consuming nothing but Soylent for 30 days or more. In Rhinehart’s view, the idea might seem experimental today, but it could become the norm somewhere down the road. Whether he’s right or not, there’s certainly no harm in putting his product to the test. Or is there? Ehh, not really, unless you count nasty gas as harmful (more on that later).