i think people had to get to a point where they could actually have the time to dedicate to something like technology. for a very long time in human history the vast majority of our time was spent doing things like
growing food, hunting, dying young from an arrow to the knee, etc.
one of the major advancements that helped us leap forward was created by a man named Fritz Haber:
Fritz Haber - Wikipedia, the free encyclopedia
long story short he invented a process that allowed the world to grow a lot more food so less people needed to farm...more people focusing on other things like Tech.
the science he used to make this breakthrough was based upon the discoveries of others before him and so on.
at this point technological advancement is going forward at an exponential rate and i don't think that we can absorb it as fast as it is created.