That's hardly surprising no ? These 'revolutions' only happen once every few decades, and looking back everything looks insignificant (because their significance shrinks to nothing when you're at the wake of the exponential function).

If you look back there's basically "nothing" that happened till the 90s; and if widen the horizon a bit and look back 'nothing' appears to have happened till the 20th century and so on.

We grow in ability, not wisdom (which is why 'forgetting' is so much more catastrophic).