In late 2021, Elon Musk tweeted his fears about the end of humanity. “We should be much more worried about population collapse….If there aren’t enough people for Earth, then there definitely won’t be enough for Mars,” he opined. Musk’s statements brought the world’s falling birthrate to the forefront of social consciousness. For nearly a century, fertility rates have been decreasing globally. The result is what scientists are describing as a “worldwide infertility crisis.” But there’s a solution looming on the horizon — artificial wombs. In 2017, scientists created a “BioBag” that functioned as an artificial womb, and they used it...