The free market doesn’t invest in fundamental research this is research to understand fundamental principles as it does not have a commercial purpose and may never result in a commercial product, ultimately, fundamental research is the key enabler of innovation. Private companies don’t invest in fundamental research, because by its nature it is open ended and very expensive and as a result may never pay back the investment.  One example is the invention of the laser: the foundations were laid by theoretical physicists like Albert Einstein. This theoretical work wasn’t done with the purpose to invent something like a laser, but to probe deeper into the fundamentals of reality. The first actual existing lasers emerged only 40 years later, and only then did corporations begin to be interested. More examples are Defense Advanced Research Projects Agency (DARPA), a military research lab, and CERN, the operator of the world’s largest particle accelerator. Between them, they serendipitously invented the key technologies of the internet, something that no one could have foreseen.  Governments have both the resources and the patience to invest in open-ended and long-term projects like this, whereas for corporations, this would have been too risky to be a sensible business decision.