A few months ago, economic analyst Noah Smith observed that scientific advance is like mining ore. You find a vein you think is promising. You take a risk and invest heavily. You explore it until it taps out.
The problem has been that over the last few decades only a few veins have really been paying off and changing lives. Discoveries in information technology have obviously been massive — the internet and the smartphone. Thanks in part to public investment, clean energy innovation has been fast and plentiful. The price of solar modules has declined by 99.6% since 1976.
But life-altering breakthroughs, while still significant, are fewer than they once were. If you were born in 1900 and died in 1970, you lived from the age of the horse-drawn carriage to the era of a man on the moon. You saw the widespread use of electricity, air-conditioning, aviation, the automobile, penicillin, and so much else. But if you were born in 1960 and lived until today, the driving and flying experience would be safer, but otherwise the same, and your kitchen, aside from the microwave, is basically unchanged.
In 2011, economist Tyler Cowen published a prescient book, "The Great Stagnation," exploring why scientific advance was slowing down. Peter Thiel complained that we wanted flying cars, but we got Twitter.
But this technological lull may be ending. Suddenly a lot of smart people are writing about many veins that look promising. The first and most obvious is vaccines. The amazing fact about COVID-19 vaccines is that Moderna scientists had designed the first one by Jan. 13, 2020. They had the vaccine before many people even thought the disease was a threat.
It's not only a new vaccine but also a new kind of vaccine. The mRNA vaccines will help us teach our bodies to fight pathogens more effectively and could lead to breakthroughs in combating all sorts of diseases. For example, researchers have hope for mRNA cancer vaccines, which wouldn't prevent cancer, but could help your body fight some forms.
In energy, geothermal breakthroughs are generating tremendous excitement. As David Roberts notes in an excellent explainer in Vox, the molten core of the Earth is about 10,000 degrees Fahrenheit, roughly the same temperature as the sun. If we could tap 0.1% of the energy under the Earth's surface we could supply humanity's total energy needs for 2 million years.
Engineers are figuring out how to mine the heat in the nonporous rock beneath the surface. As Roberts writes, "If its more enthusiastic backers are correct, geothermal may hold the key to making 100% clean electricity available to everyone in the world."