I've never heard of any diet where you only eat one thing ending up well but maybe this is different.
Well the point is that you can eat this every day and survive. I mean, that's where the engineering comes in. I bet mk's just talking about the boredom. However, Soylent is just a bit too expensive for me right now. kb below: 4$ a meal. I top that every week, just shopping intelligently. Sure I eat a lot of oatmeal, but...
Might be worth noting that it's $4/meal at its most expensive. Depending on how many bags you order and whether you get a renewing subscription, it works all the way down to $3/meal. mk also mentioned that each packet made enough for 4 meals for him, rather than the three that these calculations are based on. $3/meal is still easy to beat, but a bit better.