It wasn't so long ago that complexity thinking was synonymous with bottom-up computer simulation. However, in the past 5-10 years we have seen other threads emerge from this mathematically focused starting point that acknowledge the profound philosophical implications of complexity.
Kurt A. Richardson and Gerald Midgley (2007) "Systems theory and complexity: Part 4" in: E:CO Issue Vol. 9 Nos. 1-2 2007 pp. xx–xx.