Fundamental change is only achieved by a congruence of change, both from the bottom, and from the top, a double reconfiguration of classes to a new system. Socialist proposals cannot account for this. The owners of capital have zero interest in such a radical change of ownership, while the workers cannot point to any successful alternative patterns that could form the basis of a new society, instead having to opt for radical but unproven social experiments. The key problem therefore was that it could not point to any other proven alternative that would be more productive, and elicit congruent change both from the top and from below.