The eutopia he describes is feasible, the arguments are rational, the historical understanding of what he covers is good.
What he misses, however, is social inertia and reactionary forces. The technocratic ideals he espouses have been espoused before, in similar periods, yet they have never flourished. The failing has not been technical - rather, human.
Before any of what he describes is installed, we will descend into chaos - and from chaos, conservatism and adherence to "old ways" grows, as certainty becomes the principle desire of an uncertain people. Conservatism, if strong enough, manifests into nationalism, the desire for strong leadership, for a return to the glorious past - and from this a whole host of totalitarian regimes have been born. The two best known examples are Soviet Russia and Nazi Germany.
Why chaos, you ask? Well, the vote has legitimised behaviour that last week was not legitimised, and the populace is becoming rapidly bitterly divided. This leaves the government in a quandary - if they continue with brexit, they face a brain drain and strong, possibly violent opposition from the remain camp. If they halt the exit, the same from the exit camp. If they stay still, the current situation will spill out of control.
We will see the IRA resurge and Scottish nationalism flourish, particularly given the opposition to them having referenda from Westminster, so the division becomes geographical as well as social.
I'm afraid to say there isn't a happy way forwards for the UK from here - every path leads to one form or another of damnation, further division, and potential descent into civil war.
I've already fled the country - I'm not sticking around for this one.