20 bucks says Soylent is a viral marketing campaign
theverge.com
theverge.com
But, if it's real, maybe they could go a step further? Why bother even drinking it? Why not sell naso-gastric tubes with instructions for fitting? Obviously lack of xray (to make sure it's going to your stomach to feed you, and not to your lungs where you'll aspirate the food and die) is a problem, but they appear to have ignored all the other problems.
http://en.wikipedia.org/wiki/Make_Room!_Make_Room!
It's actually not named after the movie, it's named after the artificial food that appears in Harry Harrison's book "Make Room! Make Room!" (the movie is extremely loosely based on the book). Steaks manufactured from soy bean and lentil are called [in the book] Soylent.
Soy bean and lentil, not people.