Carried to extreme, the Webb thesis becomes a form of environmental determinism that both offends traditional scholarly conceptions of multiple causation in history and also deprives historical subjects of the assumption of free will. Considered thoughtfully, however, the Webb thesis enlightens many of the important commonalities of regional life.
| Eastern institution or tool | Great Plains adaptation |
|---|---|
| Kentucky long rifle | Colt's revolver |
| rail fence | barbed wire |
| log cabin | sod house (or tarpaper shack) |
| conventional tillage | dry farming (later conservation tillage) |
| dug wells and buckets | drilled wells and windmills |
| binder | header |
| gates | cattle guards |
| small, diversified farms | large, single-crop farms |

