Musk was someone that was willing to destroy his foundation of hard work not because of foolishness but rather because his confidence stemmed from the Tortoise Longevity Art. Without it, he would not have dared to do this and in a way, it can be said that the art is responsible got his current achievements.
He was sure that this art, gave him an advantage over others, after all, long life was not something everyone could enjoy allowing them to make decisions without worrying about time.
Looking at the woman before him, he waited for some convincing reason, otherwise, everyone could only go their way. But since she said the honest reality he had nothing he could do.