He wrote, as we approach the centenary of The War To End All Wars.
No one with an appreciation of human history would write such a thing. Nor would they imagine that the technological innovations between us and that war have been marginally more important than those in the century proceeding WW I. The Green Revolution is fine, but it seems hard to believe its productivity improvements outstrip those from the mechanization of agriculture, or the use of railroads to move grain. Polio prevention is awesome, but its gains pale before those from imposing simple sanitation codes and providing clean water.
And perhaps the "salvation through technology" set should reflect on the impact of the addition of mobilization by railroad to the diplomatic problems following the assassination of Ferdinand. Or on the confusion, to horrifying cost, of military and grand strategy by the introduction of the machine gun. The unintended consequences of those innovations, and the complete failure of technology to solve them, made for the costliest and stupidest war to its date.
By all means, pursue better and better technology. But the world's deepest and most serious problems have always been political, and always will be, and will always be beyond resolution by better gadgets.