Spicy McChicken no mayo is the best chicken sandwich out of all the fast food chicken sandwiches ong. Only Popeyes chicken sandwich matches up to it

This is just simply untrue as a bunch of other comments have pointed out (smartphone, mRNA vaccines, CRISPR, cheap renewable energy). Published papers are irrelevant since it can take decades to have an actual impact on society (no superconductors yet). This is a pessimistic and uninformed take.