Life Sucks
and then you die
Meshuggah are technical and complex in rhythm only. Most of their riffs consist of only three or four chords (or so it sounds), and the guitars are tuned down so low and have such extreme distortion on them that the music essentially sounds purely rhythmic in nature. Meshuggah are good musicians, and are good at what they do, but I personally can only listen to them in small doses, as they tend to get boring rather quickly for me.