I've read it. It's insightful and accurate. It misses E1 because the global elite that we have now wasn't a problem yet. Upper Class and Top-out-of-sight are E2

I've read it. It's insightful and accurate. It misses E1 because the global elite that we have now wasn't a problem yet. Upper Class and Top-out-of-sight are E2. Upper-Middle Class is a mix of E3 and G1-2.