In the spirit of Douglas Adams, maybe that's exactly what happened, and we're now, in fact, 17 years behind where we should be.
And I'm not kidding about Muslim math and science achievements when Europe was busy fucking itself: https://en.wikipedia.org/wiki/Mathematics_in_medieval_Islam
Don't forget food surplus is what enables people do something other than just farm food, so farming efficency has dramatic long term benifits.
Worth noting that Galileo also lived hundreds of years after basically any definition of the "Dark Ages".
Wikipedia has a nice turn of phrase calling the term a caricature of the period. There are aspects to it that were true, but overall misleading to inaccurate (the Islamic world certainly was in a Golden Age at the time, however).