Those changes are relatively minor.
CRISPR is a good example of a discovery that has just come into the public consciousness in recent years, but history for that dates back 20 years!
LIGO & Higgs boson too, decades upon decades of research have gone into these.
the rest (crispr, higgs, deep learning) are not even american, let alone obama-age
That is a relatively silly remark. Science and technology never go back, by definition. Not even after world wars. Economies can go back, or cultures.
Meanwhile, normal Americans are finding it hard to find any normal jobs, because they've all moved overseas.
Silicon Valley is also out of touch with the common Americans, because STEM jobs are plenty, so people on Hacker News do not understand the struggle of the average American who can not find a normal job (that is not in the STEM field).