On Wednesday night, Business Insider revealed some shocking news.

Elon Musk welcomed twins with his Neuralink executive last November.

On Thursday morning, Musk took to Twitter to explain himself.

“Doing my best to help the underpopulation crisis,” he tweeted.

“A collapsing birth rate is the biggest danger civilization faces by far,” he added.

“Mark my words, they are sadly true,” he went on.

He reminded followers that the “population of Mars is still zero people!”

He then tweeted, “I hope you have big families and congrats to those who already do!”

Back in May, Musk has also commented on the so-called “Fertility Slump.”