Ideas often don't neatly, slowly segue into other ideas. The Ptolemaic model didn't migrate a step at a time to the Newtonian model. If progress has taught us

Ideas often don't neatly, slowly segue into other ideas. The Ptolemaic model didn't migrate a step at a time to the Newtonian model. If progress has taught us anything is that we often spend too much time arguing at the leaf level when what is needed is to back a branch or two toward the trunk and make a change there. Moving out of Monarchy and Feudalism to Democracy was a sea change that overthrew everything before it. We managed it and are much happier because of it. While I don't agree with Fresco's vision entirely, it's not because fundamental changes aren't feasible or even, possibly, necessary.