I'm surprised that Thiel doesn't engage more directly the hypothesis that for the last century (or perhaps century and a half), the living standards in the Western world have been determined by the race between rapid technological progress and somewhat less rapid degradation in the quality of government. To me this hypothesis seems very plausible, even highly probable. Assuming it is true, the interesting question is whether the recent stagnation is due to technological progress slowing down, the quality of government deteriorating faster, or perhaps the quality of government reaching some low point at which even extremely rapid technological progress can't save the day.
Also, these two variables are by no means independent. At the very least, bad government creates perverse incentives that draw smart and entrepreneurial people away from pushing real technical progress and towards rent-seeking. And as another interesting question, could it actually be that technological progress somehow inherently exacerbates the trends towards bad government, thus planting the seeds of its own future doom? I can think of some scary hypotheses along these lines, although they are highly speculative.
Why do you think there's been a degradation in the quality of government?
SIAI benefactor and VC Peter Thiel has an excellent article at National Review about the stagnating progress of science and technology, which he attributes to poorly-grounded political opposition, widespread scientific illiteracy, and overspecialized, insular scientific fields. He warns that this stagnation will undermine the growth that past policies have relied on.
Noteworthy excerpts (bold added by me):
In relation to concerns expressed here about evaluating scientific field soundness:
Grave indictors:
HT: MarginalRevolution